The Problem: When I push in on the clutch while rolling, the engine idle speed tends to go up above 1000 rpm (generally to around 1300-1400 rpm) and it stays there Sep 4, 2003 · C6 Corvette, 2005 - 2013. Started the cruise outputting 14. The minimum air flow rpm setting (made with the torx screw) is just below the closed loop, idling in gear rpm. C6 Corvette, 2005 Jun 19, 2024 · C6 Corvette, 2005 - 2013. Aug 2, 2011 · C4 Tech/Performance - Extremely high Idle RPM - A couple weeks ago I had trouble cranking my vette, 1990. Close ratio 4 speed. C6 Corvette ZR1 & Z06; C6 Corvette General Discussion; The difference is the base idle is engine RPM with the Idle Air control valve May 16, 2012 · My 1967 327/350 HP runs best at an idle speed of about 800 RPM. Feb 12, 2005 · If all else fails, increase the idle speed a little bit. The problem is it idles at 2000 rpm. It also idles a little rough but I'm sure thats typical of a 400HP V8. Sep 21, 2001 · When I start the car, she idles high, around 1500RPM :nonod: how long should it idle high 'till the RPM drops down? Which it dosn't right now. 606 on 114. Jan 8, 2006 · C4 Tech/Performance - '86 Idle and Stalling Problem - My 86 with 170k miles is having a problem at idle. 7 V at idle, and ended the day outputting 14. 5 volts at idle and 4. Jun 19, 2010 · The imperfection shows up the slower the RPM. Dealer says the idle should be 650 and it is not adjustable. However, after Mar 3, 2018 · C7 Z06 Discussion - Z06 idle RPM drop when coming to a stop - So I have a stock 2016 C7Z with M7. C6 Corvette ZR1 & Z06; C6 Corvette General Discussion; C6 Tech/Performance; C6 Scan & Tune; To 1990 High Idle, is C68 rpm correct? Subscribe Jun 2, 2022 · It first happened one morning in May in my garage. I put new gaskets and a new TPS Jun 17, 2006 · According to my Haynes manualfor a 79 with automatic transcurb idle in drive with foot on brake is 500 RPM's (Fast Idle is 1600)with high altitude 600 RPM's (Fast Idle is1750)for an L-82 700 RPM's (Fast Idle Idle is 1600. C6 Corvette ZR1 & Z06; i can get the motor to idle, although VERY rich and @ 1400 rpm. C6 Corvette ZR1 & Z06; C6 Corvette General Discussion; C6 Tech/Performance; Autos and Sticks do not target the same idle rpm, but all Aug 18, 2024 · C6 Corvette ZR1 & Z06 - LS7 Valvetrain / Loud Tapping Noise - Hello again everyone, recently I've been very paranoid (maybe too much so, but maybe not) over my LS7 in my Z06 being on the much louder end of valvetrain noise. Feb 18, 2008 · C3 Tech/Performance - Correct 82 idle RPM - What should the RPM idle be once the car is warm? My current idle RPM is at 10 once warm, but seems to be high. Needs a small torx driver to turn. Car starts fine. But before you think about replacing the MAF, start by checking terminal C on the MAF sensor, it should be about 0. Nov 14, 2006 · C4 Tech/Performance - '84 cfi idle problems, - i know this has been asked a million times. If it is 25, it is safe, but may be a sign of problems. Jul 20, 2024 · C8 Z06 Discussion - 2024 Z06 Idle RPM - Sorry if this was addressed somewhere, but I could not find it via search. I think it has stock cam, but not sure. I did all the regular stuff, check plugs, clean throttle body, put in 5 gal of 100 fuel and run the snot out of it. Jan 10, 2019 · C5 Tech - RPM drops when idling - I've got a 99 C5 automatic with about 140k. Normal idle rpm is 600-650, but, probably 50% of the time the rpm's will drop to only 400 for just an instant. I have a 1984 Corvette with Crossfire, about 75k miles on it. 85,000 miles. I removed the throttle body and i cleaned it. Problem -Engine doesn't seem to want to idle, presently at 600/800 rpm in drive 850/1050 rpm in neutral. C6 Corvette ZR1 & Z06; Feb 5, 2020 · You can lower the idle, richen the mixture (13. It was stored 25 years, well maintained and looks like new and has 60K on it. just maybe run up to 110-120 MPH for a short distance it sounds like it is maybe idling a bit higher then May 20, 2005 · My C6 Z51 6-speed coupe appears to have engine ticking at idle up thru 2000 RPM . Halltech CAI, with MSD intake. Intros; C6 Corvette, 2005 - 2013. May 20, 2016 · When I bought my ’67 300HP/327, it had a Melling M55 oil pump and the Melling #55058 (yellow) bypass spring. May 13, 2024 · C1 & C2 Corvettes - C1 running at high RPM when at idle - My 61 vet is running at high rpm's when sitting at idle. Jan 7, 2002 · C5 Tech - C5 RPM too low at idle - 99 coupe, six speed. I backed out the idle adjustment screw and could see about a 1/16 of an inch space between it and the stop. Purchased from a dealer so know real owner history of than carfax. 52000 miles runs great except at idle. AT. Stock. Most noticeable when cold, RPM improves somewhat after warm up, but the surge never goes away. Something is Feb 22, 2010 · C6 Corvette General Discussion - Idle drone - I seriously considering a Corvette when my current lease runs out in November '10. I want mine turned down just a little(100-200 rpm) I have a cam, CAI Jan 15, 2022 · C4 General Discussion - 1985 Very High Idle Speed (1900 RPM) After Driving 15-20 Miles - I am having a high idle issue on my 85 Z51, 4A. florida temps are unusually cold this week,60 degrees for the highs. You can look in my signature to see the cars setup, most importantly is the big Cam. Is that where it’s supposed to be? Log In; Register; Forums. I have a 2007 z51, manual,105k with headers, halltec intake, and tune. I believe the engine is stock with the exceptions mentioned above. I remembered seeing a chart in an old Corvette New mag Vol 2, No 10 and just looked it up. Of couse the Apr 12, 2020 · C6 Corvette ZR1 & Z06 - Not happy with loudness and lope of Stage 3 cam - I cain’t change my heading but i don’t have a problem with the lope of the Stage 3 cam just the loudness! I’ve a 2009 Z06 I just purchased with the following modifications professionally done by American Heritage Performance. I have a 1986 Jaguar XJ6 with a 1989 L98 swapped into it by a previous owner (figured I'd ask here instead of the Jaguar forum as my problems are with the engine). Nov 22, 2004 · C6 Corvette Forums. It May 25, 2017 · C4 Tech/Performance - 84 Crossfire Idle/IAC help - Hoping you guys can help me out. I replaced the fuel pressure regulator and it fired right up. It immediately jumps to that speed then lowers down to normal in a brief time that seems to depend on how warm the engine is. The computer slowed down the idle and then put 600 rpm idle. What is the Z06 Idle RPM. Also I don't have access to a scan tool at this time. Use the factory number as a guide and starting point. Dec 30, 2008 · C6 Corvette, 2005 - 2013; C6 Tech/Performance; Does anybody know what the idle rpm should be on an 08 convertible with the "standard" engine (LS2 I think)? Mines Dec 6, 2012 · C6 Corvette General Discussion - C6 vibrates at idle - I have a 2012 C6, the car has a strange vibration that I only feel when the car is idling. No good, CRC MAF cleaner is all it took. The head on the idle set screw is hidden under a plug that has to be removed. On a '92 what is the procedure for increasing the idle speed. Mar 1, 2010 · C4 Tech/Performance - 86 wont idle - it wont stay runinng if rpm is lower than 800rpm? just started doing it? runs great other than that. I would expect the idle to hang high around 800-850 rpm with the IAC at zero Mar 26, 2019 · P0506 is a common OBDII trouble code. Log In; Register; Forums. Intros; In Memoriam. May 1, 2013 · C4 Tech/Performance - 1994 LT1 Corvette With High Idle - Need additional Solutions, HELP!!!! - Hello everyone and thanks for taking the time to read my post :). Anyway, at idle in park the car seems to have a slight miss at times. Also open to suggestions if anyone has supporting details. When i slow down to stop put the clutch in the Idle hangs a 2k rpm. usually idles around 700 rpm with clutch in. C6 Corvette, 2005 - 2013 Mar 27, 2011 · C6 Tech/Performance - engine idle speed - What is the normal engine idle speed for a 08 c6 auto? mine is at 500-550 rpm, its seems a little low to me. 3000 to 4000 rpms. I've read it should hover around 650. My main problem is the car has an extremely high idle. After letting the car sit for about 45 minutes, the idle is Nov 8, 2019 · C6 Corvette, 2005 - 2013; C6 Tech/Performance; Idle Re Learn; The ECM will start to learn the new idle cells and Desired RPM should start to decrease. I tried lenghtening the accelerator rod but that did not help. You can see Jun 3, 2010 · C3 Tech/Performance - Idle rpm - What should idle rpm be on my L36? Log In; Register; Forums. My C4 ('92) has a minor wiggle at 500 RPM in drive. I know 1600 is the RPM and the "N" stands for Neutral. but my L98's that I have had over the years have always ran higher rpm at startup and slowly dropped to normal idle. Why? - I have a 66 427-425 stock motor. Moving in 6th gear light throttle in the 1200-1400 rpm range you can feel this misfire. So a 1700 RPM, say, fast idle when warm might only be an 800 RPM idle when the engine is cold. There is a vibrating annoying noise when sitting in the car, that comes in my opinion from too low idle RPM. For A. If equipped, disconnect the solenoid wire, set the carburetor idle screw to obtain 450 rpm, and reconnect the solenoid. Adv Mar 9, 2012 · Reving the engine off idle gradual up to 2,000RPM's, if the IAC is working correct, IAC counts will increase higher numerical. Is this normal for the small block V8? Coming from german cars, they had a super steady idle, did not move at all. Ron. I hear some say its quite common. However, recently I noticed that when I disengage the clutch, the engine RPM's drop below 500 or so Jan 13, 2014 · C6 Corvette, 2005 - 2013. Aug 8, 2009 · C6 Corvette General Discussion - Normal Idle RPM - on a C6 2008 A6 without a tune? Log In; Register; Forums. It mostly stay's at 2krpm sometimes I can Feb 20, 2005 · C6 Corvette, 2005 - 2013. stalled once, started right back up. Nov 7, 2011 · Chevrolet set the fast idle spec so that the engine would not run lean and die when cold. 1977 L82. One day I was Aug 22, 2012 · C4 Tech/Performance - Sputter at Idle and Lower RPM - I bought the car over a year ago with 42K and it ran great except it would sputter erraticaly at Idle and low RPM. Is the irregular idle I describe normal? 2. 605/. I have a long flat drive way and when i am creeping in, i Sep 15, 2021 · C7 General Discussion - RPM's at idle - Just bought a C-7 with 5600 miles on it. I've test driven three and idle quality is bad enough that I'm not going to spend over $50K for a car that runs no better than this. Oct 2, 2006 · The exact number (idle rpm) is irrelevant. It says recommended idle speed RPM for standartd engine 327 cu in 4 barrel carb hydraulic lifter camshaft is 500 RPM, 700 RPM with manual transmission and Air Injectior Reactor and 600 RPM for automatic with Air Injector Reactor. The rpm's at idle seems to be to low as it is a rough idle. P0506 Symptoms: Corvette Most Mar 31, 2017 · C1 & C2 Corvettes - idle rpm fluctuation - on my 350 crate, I get some fluctuation on idle. Auto. cars (California emissions) the hot idle is 700 RPM for 4-speed and 550 RPM for automatic (in DRIVE). Aug 1, 2008 · C6 Corvette General Discussion - Idle RPM - What kind of RPM's is everyone seeing with and without the AC on? With AC - 600 rpm Wotihout 500 rpm Both of these seem to be low to me. Fine with me. I have a 1987 stock convertible with manual (4+3) transmission. Feb 13, 2008 · The RPM indicates about 500 RPM at idle and has a slight what I call a miss. Car runs great and does not hesitate Jun 20, 2009 · The 1967 Chevrolet Shop Manual says hot idle for a 427/390 HP is 550 RPM for 4-speed or automatic. My 85 idles normal (550-600 Drive, 650-700 Park), then after driving 15-20 miles it will run at 1900 RPM in park. Adjust fast idle screw to proper RPM. C6 Corvette ZR1 & Z06 450 rpm is a little low . C6 Corvette ZR1 & Z06; C6 Jan 24, 2008 · I got a new Corvette C6 Z51 coupe 2 weks ago. 8-14. It's about 50rpm as read on a timing gun. My only complaint is a drone at idle about 550 rpm),on all of them. I noticed when we stopped at a light the idle would drop to 350 rpms and go back up to 550 or 600. I say high because when I put it into reverse to back out of the garage the rear end lifts as if it is ready to go. It's not a problem but does seem slightly low. Please tell me if I have an issue that needs a visit to the dealer. C6 Corvette ZR1 Jun 19, 2014 · C6 Corvette General Discussion - Engine RPM's droppin when disengaging clutch - All, I'm new to Corvette Forum, bought an 07 C6 with the Z51 package a few months ago, and am loving every second I am behind the wheel. Apr 3, 2016 · C4 Tech/Performance - Another LT1 High Idle issue - Hello all, I have a 92 LT1. Is this normal for an LS3? May 1, 2016 · C3 Tech/Performance - Low rpm inconsistent idle - Greetings all. Heads are un-milled with a valve job. The car would almost stall when it dropped to 350 rpms. The idle settings with a/c on or off is set at 875rpm. Cause? - Just started doing this. C5 General; C5 Tech; C5 Scan & Tune; C5 Forced Induction/Nitrous; Performance Aug 26, 2008 · C6 Corvette ZR1 & Z06 - Idle RPM: What do you have? - I am trying to figure out the best idle RPM to set mine at. Feb 24, 2024 · C6 Corvette, 2005 - 2013 When you start your engine cold it will idle a little high untill it warms up by design and when it warms up it should idle at a lower May 12, 2008 · C5 Tech - Guys with CamsIdle RPM ?? - I have a car with the MTI C2 cam. Now when I fire it up it starts right away and purrs. The engine speed at idle is 500 RPM. C6 Corvette ZR1 & Z06 General info about GM’s Corvette Supercar, LS9 Mar 8, 2014 · But it seems like some basic questions haven't been answered in a convincing way. It will be idling fine for about 30 seconds and then it will drop down to about 300-400 rpm. Is this correct and if so what would be an appropriate adjustment procedure? I have an FSM but don't know the start point here and have seen several options. I have tested, fixed, or Apr 19, 2011 · C4 Tech/Performance - 1984 corvette idle problem - PART 2 - Hello again, I am still having trouble lowering my idle speed on my 84 vette. C6 Corvette ZR1 & Z06; What's Normal Idle RPM on ZO6. This has happened 2 of the last 3 times I have driven the 85 in the Apr 3, 2012 · C5 Tech - Correct Idle RPM - I got a 2002 LS1 with K&N filters and borla exhaust. 7 volts at WOT. Right now I have it at 780 at normal operating temp, and it seems like it could go lower. I run my mild-cammed '64 idle at about 800. sometimes it will idle low, around 500-600 rpm. That seems low to me (My C5 Z06 idles at 800RPM) Sep 8, 2020 · C7 Z06 Discussion - Exhaust volume at idle/low RPM - I’m coming up on a month of z06 ownership and love almost everything about this car; however, the exhaust note is far too quiet for my liking. normal altitude) Oct 10, 2005 · Adjust both idle mixture screws equally inward to obtain 700-750 rpm for manual transmissions or 550-600 rpm for automatics (in Drive). the L48 had the lovely buick idle at 650 or so and the L82 factory idle was 900 rpm Oct 6, 2009 · C5 Tech - Rough & Low RPM Idling - Tested Everything - Slowly Going Insane! HELP! - *UPDATE* IAT sensor readings are 60C/140F even at idle. C1 & C2 Corvettes - idle rpm fluctuation - on my 350 crate, I get some fluctuation on idle. It is currently set to idle at 950. if i step on the gas it comes back to idle at almost 2000rpm. I tuned idle up to 750 so it’s not as bad at 650 rpm. Apr 23, 2007 · Sounds about right. . It is the same in gear and out of gear Oct 15, 2014 · C6 Corvette General Discussion - slight engine miss at idle - just purchased a 2011 GS, automatic with less than 10K miles. The idle rpm is burned into the PROM and shows up as Desired Idle Speed on the Diacom readout screen and it may vary a little depending on the year of the engine. Oct 30, 2007 · C5 General - 2003 Z06 normal idle RPM - I am thinking my is idling about right, but I am not sure? The Z06 is all stock, but sometimes after a bit of semi-hard driving, no auto-crossing, drag racing, WOT etc. This only happens when the cluth is pushed in. then 20 minutes later the idle is around 1300-1400 rpm in neutral. I started the car to go to work and the engine roared to 3,000 RPM the moment I turned it on, and stayed there for about 15 seconds before finally settling down to its normal idle RPMs. The engine should run around 100 RPM higher until it is warmed up. It seems to go away at Sep 27, 2004 · C6 Corvette, 2005 - 2013. I'm assuming by a computer. I have driven an '07 Coupe, and have recently driven an '09 coupe and convertible (both Hertz HZH). C6 Corvette ZR1 & Z06; C6 Corvette General Discussion; C6 Tech/Performance; C6 Scan & Tune; C6 Forced Induction/Nitrous; C6 Dealer Inventory; C6 Corvettes for Sale; C6 Parts for Sale/Wanted; C6 Vendor for Sale; C5 Corvettes, 1997 - 2004. around 1500 and after a minute or two it raises up to 1800. I did all the usual suspects, like vacuum leaks, loose centrifugal distributor weights , initial/total timing etc. New Member. Engine runs great too. Aug 23, 2004 · I agree with checking the relays first cause there cheap. Dec 29, 2019 · C7 General Discussion - Idle RPM - What should a 2019 base stingray idle speed be? Log In; Register; Forums. If it is under 20, in just about any vehicle, it should be a serious concern. I first take the car out it seems to idle just fine at around 900 RPM however after driving for a bit it likes to idle Mar 11, 2010 · Hey guys, last post I could'nt fix a 500 rpm bump in my idle as I came to a stop. I would like to bump it up just a little. idle valves are at the front of the throttle bodys. Two days later I went to crank it and I noticed it was idling really high, around 4300 rpm!!!! I noticed the upper intake manifold gasket had folded Mar 16, 2018 · C6 Corvette, 2005 - 2013. Set idle rpm to a comfortable level that produces a reliable and good quality idle. i'm sure i wont be the last! my '84 has a mind of it's own. Jan 22, 2016 · C3 Tech/Performance - 1982 C3 Crossfire very high idle 2000 rpm (help) - This morning I attempted to lower the minimum idle as she was idling a little high. I did spray Carb Cleaner into the Primary Nov 20, 2005 · C5 General - Manually change Idle RPM? - I have a built 418 Stroker and it idles at ~1000 RPM. If ac is not on idle corrects fine. however, as soon as i connect the MAF, it dies . I bought and installed a GM #3814903 spring and my hot idle (600 RPM) pressure is now 30 psi, and 45 psi at 2000 RPM - measured running Shell Rotella T 15W Feb 25, 2013 · C6 Corvette, 2005 - 2013. During cold start the rpm stays at between 650 to 750. Jul 20, 2024 · C6 Corvette, 2005 - 2013. I drained the gasoline and replaced it with new gasoline, but it didn't help. When you turn on the AC compressor the computer bumps your idle up about 50 RPM to compensate for the increase in load. Is there a way to manually lower the idle? C6 Corvette, 2005 - 2013 Dec 17, 2019 · C6 Tech/Performance - Anyone using BTR Stage 2 Cam - Looking for specific feedback Pros/Cons from those who have this cam in LS3 with A6. I'm afraid it's going to die when I pull up to a stoplight. How do I raise the rpms both in park and drive? C6 Corvette, 2005 - 2013. 5 V at idle, AC on, rad fan running. However lately it's been doing it much more Oct 22, 2017 · C6 Tech/Performance - Z06 idle issue help - 2007 Z06 cam 242/246 . The timing is fluctuating Jun 7, 2023 · C4 Tech/Performance - High rpm idle when selecting gear and harsh shifts - Hello there I'm experiencing a new issue impacting a past one with my 86 C4 with L98. Aug 20, 2007 · C6 Corvette, 2005 - 2013. The car is throwing codes- PR0131 Dec 2, 2012 · C6 Forced Induction/Nitrous - Centrifugal Superchargers - What RPM Does Boost Come On? - A very simple question to those in the know to all those with a centri kit, what RPM does boost usually begin to rise? I hear 2,500 and 3,500 all the time. Oct 30, 2023 · C8 Z06 Discussion - Start-up idle speed - Picked up new Z06 less than a month ago at Museum. So I would appreciate hearing from other LS3 owners and/or general corvette experts on: 1. Is 500-550 RPM warm idle speed normal? 3. Normal for 1 C6 and 2 C7s. Alot of the time it just comes down to the throttle body having carbon buildup-and it needs to be cleaned, Chevy bulletin number 87-100, 85-87's. C6 Corvette, 2005 Nov 2, 2016 · C3 Tech/Performance - RPM Surges @ Idle. Reply Like Our current 2017 is our 4th modern Corvette, automatic, all Z51 but none of them modified. Alternatively a low idle speed combined with a lean mixture (say 15. Sometimes the idle speed drops to right about 500 rpms and I can feel it a bit more. It idles kind of rough like it has a slight miss. Seems to make good power with a nice lope at idle. Jul 12, 2023 · C8 General Discussion - How steady should the idle rpm be? - I find that the C8 idle speed fluctuates a bit, hard to tell exactly how much probably around 50 rpm +/- 25. Jan 22, 2011 · C6 Tech/Performance - Idle High - I have a modified '07 Z06 that seems to have an issue with idling high. C6 Corvette, 2005 Dec 23, 2019 · C7 Tech/Performance - Loss of power bogging and high rpm at idle when down shifting - Hello so i have a stock 2016 z06 with 25k miles so about 3 months ago this issue started to occur, whenever the engine has been running for a while and its warmed up if i shift into second it boggs then all of a sudden kicks back in Aug 5, 2018 · Then place cam follower on proper step of fast idle cam. I'm guessing my problem is that I'm not turning off the LTIT in Adaptive Idle. C6 Corvette ZR1 & Z06; Correct rpm at idle? What is the correct idle speed for my 73? 350 with auto transmission. Tach shows it is 650 and if you bring it up to 750 it smooths right out. Had MTI in Houston dyno tune it with LS2Edit. Feb 27, 2011 · C6 Tech/Performance - LS3 engine idle problems - Hi , I have just built in my Corvette a LS3 crate engine, When I start the car it has sometimes the right idle and sometimes a low running till dying idle. The car sounds pretty good at WOT but as my daily driver, I spent plenty of time just cruising and would like more volume Apr 12, 2009 · C6 Corvette, 2005 - 2013. I had previously noticed the RPM stumble when coming to a complete stop when I had the AC on in Hot summer months. "Normal" for any LS engine is 750 RPM after the engine is warmed up. It happened again 3 or 4 times over the next 2-3 months while sitting at red lights. Aug 30, 2009 · 2005 Lemans Blue C6 A4 232/234 600/600 112, Longtubes, ORX, BB Bullets, Vararam, UD Pulley 2002 Electron Blue Corvette Z06 my slow idle return/hanging rpm's only Jul 1, 2011 · C4 Tech/Performance - 1986 Idle Adjustment? - Is there anyway to adjust the idle on 86 coupe?? The car idles around 600 rpm in gear. I only have 787 miles on the car. 1-7/8 headers, no cats to stock bimode exhaust. R. From a nice steady RPM in the past, to now a surging RPM that almost lets the engine die on the low end. The 350 HP cam will not allow the car to idle below 550 RPM. The fast idle is set when the engine is fully warm. Is this way too high and would that effect the timing of the engine possibly causing a lean condition and rough idling? Jul 17, 2013 · Idle RPM is controlled by the ECBM computer. May 12, 2008 · What cam do you have and what is your idle RPM? thanks. What is normal idle RPM's? Jump to Latest 7K views 7 Oct 25, 2005 · C5 Tech - 500 RPM idle? - My car idles at 500 RPM cold. Dec 22, 2008 · I hope this doesn't come across as a dumb question but is there a simple way to adjust the idle on a '05 C6 with out having to bring to a tuner? My idle has been right around 700 to 800 (closer to 800) and I'd like to drop it down just a tad. Exh. That 1,000 RPM difference could be the deciding factory on whether or Jun 1, 2015 · Oil pressure is only comparative at normal operating temp, at idle rpm. The exact number is dependent on cam, engine mods, and other factors. drives me insane!!!! what is the most likely cause? Jun 2, 2009 · C6 Corvette General Discussion - RPM at Idle, 09 C6 A6 - What does your 09 C6 idle at? Mine is contstantly at 550 or very slightly below . My RPM usually is 800 at idle but sometime flutuates +/- 100. Feb 5, 2009 · C6 Scan & Tune - How do you turn off Adaptive Idle for tuning? - Everytime I try to tune my Vette, my LTFT's at idle get wacked. It's an intermittant problem. It is typically triggered when the engine idle speed is lower than the predetermined limit set by the manufacturer. my research told me that they automaticly run a burnoff cycle, but in my case, perhaps some oil from the Mar 8, 2008 · C6 Corvette General Discussion - Idle speed is 500 rpm - I have installed a breathless performance CAI, Kooks 1 3/4 headers, highflow cats and catback. When I have started and engine got the right idle , and put than the 400th automatic gearbox in drive (pure Sep 13, 2019 · C7 Tech/Performance - What is idle RPM? - I have a 2016 with Z 51. Apr 7, 2005 · Now, the minimum airflow setting is not the same thing as the idle rpm. Anyhow, I've read many different forums of what could cause a high idle, but let me explain my problem first (before I try anything else). C6 Corvette ZR1 Nov 27, 2017 · C4 Tech/Performance - Need solution for hunting idle - 1989. C6 Corvette ZR1 & Z06; C8 Z06 Discussion - 2024 Z06 Idle RPM - Sorry if this was addressed somewhere, but I could not find it via search Jun 24, 2018 · C6 Tech/Performance - LS3 RPM Intermittently Dropping at Idle - I have a stock Ls3, automatic, with Diablo 93 tune and polished throttle body. 55,000 miles. C6 Corvette, 2005 - 2013. Set it (through the computer) to 700 it's real smooth. It is an automatic. so don't even try to go there. C5 General; C5 Tech; C5 Scan & Tune; C5 Forced Induction/Nitrous; Performance Oct 22, 2016 · C7 Z06 Discussion - Idle RPM??? - How do you adjust the idle rpm. C6 Corvette ZR1 & Z06; Apr 24, 2011 · C6 Corvette, 2005 - 2013. When the car is hot and i select a different gearshift position, the idle RPM ramps up for apparently no reason for some seconds, then they slowly get back, Apr 21, 2024 · C4 Tech/Performance - 94 LT-1 6spd - idle RPM - My idle RPM is 900-1000 shown on the car tachometer. That cam will idle at 950 all day, but I agree about it being very hard on the valve train. Tonight I was trying to get it to work and I let it run longer. 050" Lift Int. No engine codes. It never really did it in cooler weather or if the AC is off. There should be an underhood decal that would specify the correct fast idle speed for your car. One thing I've noticed - and wonder about - is the high (1,500 RPM) idle speed when the car starts. But at some point while i'm out driving, i'll let off the gas to coast and the car maintains speed Pop it in Neutral and the RPM is Jan 31, 2006 · C4 Tech/Performance - 87 engine idle problem - I have a problem with my engine idle speed. Reply Like Feb 15, 2013 · C6 Corvette ZR1 & Z06 - What is the correct stock idle speed for a C6 Z06 - What is the correct stock idle speed for a C6 Z06? I drove a 2010 Z06 today that idled at 600RPM. YOur thoughts? May 19, 2007 · I can set the idle, at say 800 rpm in park, then after driving for an hour, it will be 1000 rpm? It will then start dieseling on shut down. Even after 15 to 20 minutes of being driven, the engine feels like it Feb 4, 2018 · C6 Corvette General Discussion - Help with 07 idle/bog at low RPM - I've tried searching and found similar issues but no answers. Runs fine. Jul 18, 2017 · C3 Tech/Performance - Help with won't idle & rpm surging problem. I daily drive it about 70 miles per day. C6 Corvette, 2005 - 2013; C6 Scan & Tune; LS7 C7 General Discussion - 1500 RPM noise - Anyone know/experience the 1500 rpm noise? Log In; Register; Forums. The car has a killer bee intake, torquer 110 cam, kooks headers, no cats and a corsa exhaust. It seems the idle is high at about 750rpm which causes the car to creep at 4 mph if I take my foot off the brake. I cant figure out how to Jan 9, 2019 · C1 & C2 Corvettes - Can't adjust idle below 1000 rpm - My car is idling at about 1000 rpm and running on when I shut the engine off. Apr 17, 2006 · C5 Tech - A/C on/ Clutch in/ Idle Stuck at 2k rpm - Ok here is the Short story. I have a cam but it idles fine at that RPM. " So I mosey on down the list and find my application and it states "1600N H/S" in the column for "Fast Idle RPM". If equipped with air conditioning, the idle speed is set with the AC on. When I remove the PCV valve and Jan 10, 2017 · Would like to raise it to about 1200 rpm, it has GT21 cam in it, and at that RPM it sounds the best to me. My C5 has a minor wiggle at 600 RPM. No issues with the choke. C6 Corvette ZR1 & Z06; C6 Corvette General Discussion; C6 Tech/Performance; What is the proper idle RPM? I'm at 600 in neutral, and I Sep 15, 2013 · C6 Corvette, 2005 - 2013. when driving, car at normal operating temps, let off gas coming to stop, idle drops below 500 rpm and stumbles. Aug 30, 2020 · New C8: 3LT, GDO yellow, DTH CF Racing stripes, Q8Q CF wheels, Z51, J6E yellow calipers, E60 Front end lift, ZZ3 engine appearance pkg, FE4 mag ride, EYK chrome badges, FA5 C Fiber interior trim, AH2 GT2 seats, 3M9 yellow seat belts, HZN Natural Dipped Interior. It is a generic code, which means that it has the same meaning for the Chevy Corvette as it would any other vehicle. Has anyone ever got an interesting response from a dealer re C6 LS3 rough idle issue? 4. Sort Threads by Model: ZR1 | Z06 | Show All . Most stock-cammed applications will idle at 650. C6 Corvette ZR1 & Z06; Nov 25, 2013 · C6 Corvette General Discussion - LS3 Idle - I have a 2010 (auto) with 16,300 miles on it. The idle fluctuates from 400 to 850 RPM at times and when scanned it is running very lean and will not stay in closed loop. Is this weird? Is this indicatice of a problem? Everything seems to work fine. No Codes. Oct 30, 2023 · C4 Tech/Performance - 1989 L98 Stalling, Intermittent Rough Idle - Hello everyone, First post. 1LT coupe (LS3) Transmission: 6A Warm idle speed: 500 RPM in N or D I'm asking because the only thing that May 26, 2008 · C6 Corvette, 2005 - 2013. I just flushed and serviced the cooling system witch was like brown mud water (Bars Stop Leak?) Aug 24, 2010 · C6 Corvette, 2005 - 2013. Its been there since new and still at 1100 mi. I drove the car for a few minutes and the idle was right around 700 RPM. It had other idle issues besides this one (would not stay running when cold) but I think I tracked most of that down Jun 26, 2021 · C3 General - Idle RPM - My idle (when warm) in P and in D is around 500. May also be a problems with other HP motors When I start my car it idles perfect after the choke does it stuff and when stopped will idle at about 850 RPM. Jul 31, 2008 · C6 Corvette General Discussion - Idle RPM - What kind of RPM's is everyone seeing with and without the AC on? With AC - 600 rpm Wotihout 500 rpm Both of these seem to be low to me. 75 but in 78 the L82 idled much higher than the L48. Mar 28, 2010 · C6 Corvette, 2005 - 2013. I tried the procedure to set the TBI settings, grounded the ALDL to set the IACs, set the TPS. At idle the engine was to hunt up and down Not too bad, but enough to idle on the rough side. It will drop lower than 500 RPM, then bounce back up to normal idle, go back and forth a few times and then even out. This situation has developed in the last couple of months. Dec 1, 2018 · C1 & C2 Corvettes - Idle RPM - My 1965 corvette when idle runs at 15 RPMs. C6 Corvette Apr 26, 2009 · C6 Corvette General Discussion - 2009 C6 LS3 Idle Surging - We went on a cruise Saturday and it was about 90 degrees. Aug 14, 2007 · C6 Tech/Performance - Engine RPM problem - My 2007 with manual trans, has a problem. C6 Corvette This profile is designed to boost bottom-end torque, and is best from idle to 4,500 RPM Cam Part No. My oil pressure gauge read 30 psi at a hot 600 RPM idle, and 60+ at 2000 RPM. If I run the (factory) air conditioning I usually have to increase it to 900 RPM to keep it from stalling when the air is switched on. However I need to know if "H/S" stands for "high step" of the cam. 550 -650 rpm is factory . Automatic equipped car is set with transmission in DRIVE. The C6 is an auto-stick and when slowing to turn, I find that when I push the accelerator out of the turn, it seems to hesitate, but only for a I am in the market for an 08 LS3 automatic Z51. Am I imagining an issue?? Jun 19, 2009 · C6 Corvette General Discussion. Does not sound like injectors since ticking frequency increases with RPM. Feb 1, 2020 · C4 Tech/Performance - 1992 corvette high RPM at idle issue - HI everyone, i been having issues with high rpm at idle. If I set with the clutch in and rev the engine, it will drop smoothly to the Apr 8, 2017 · C7 Tech/Performance - Idle rpm - Is there anyway short of tuning the ecu, to raise idle rpm by about 50 rpm? C6 Corvette ZR1 & Z06; C6 Corvette General Discussion Aug 21, 2014 · C6 Corvette, 2005 - 2013. Somewhere around 25 to 55 counts for the IAC with the engine fully warmed & at idle is normal. Just got my Z16 today & noticed after engine is warmed up, it idles @ 800rpm. 2's) and average timing (14-16*) will typically yield much more 'lope' radical behavior Jun 9, 2022 · C4 Tech/Performance - 1985 Vette idle/open loop - I purchased this 1985 Corvette 3 wks ago. say maybe 540 . Dur @. Oct 26, 2006 · C6 Scan & Tune - LS7 Idle RPM - What RPM does a stock LS7 run at Idle? Thanks. The idle is a little slower than the ecm wants it to be, so the iac is opening a little to get the idle back up where it should be. - 75 Vette TH400 Auto. From idle in neutral to about 1500 rpm I detect a random misfire or sputtering. In the case of GM vehicles (and possibly others) if the idle speed is over 200 rpm higher than expected, this code will be set. C5 General; C5 Tech; C5 Scan & Tune; C5 Forced Induction/Nitrous; Performance Mar 27, 2017 · C1 & C2 Corvettes - idle rpm fluctuation - on my 350 crate, I get some fluctuation on idle. Car at operating temp 190 deg A/c on. Jan 2, 2006 · C4 Tech/Performance - 2000 rpm idle? - I give up, I put the Dynatech, a hotter coil, and a new clutch and flywheel. -Very high smell of gas, (my clothing and I, smells of gas after a 20-minute Feb 13, 2012 · C6 Corvette General Discussion - What is your warm idle speed? - Here is the information I'm looking for (using my car as an example), and below that is an explanation of why I'm asking: Year & model: 2012 Std. I have an '01 A4 block stock except for Tubi exhaust that idles at 550 rpm when warmed up. My Jun 27, 2024 · C1 & C2 Corvettes - After warming up engine idle goes to 1000 RPM. Jun 24, 2024 · My LS3 seems to idle predictably at 650 rpm, and I was watching the voltage quite closely recently on a 6 hour cruise. Apr 27, 2010 · C6 Corvette, 2005 - 2013. I believe if I set it to about 550-600 (in drive) it will also smooth out with out to much creep. Jun 19, 2020 · Its good that the IAC is now functional, but If the IAC is currently at 17 counts at 1,000 rpm when scanning in ALDL mode, it can only drop to zero in an attempt to control to the desired idle rpm (typically 650-700 rpm for manual trans cars and 550-600 rpm for autos). Decent performance above idle, but when slowing or stopping (normal driving) the rpm will sometimes drop to 500 RPM or lower and sometimes it cannot recover Aug 20, 2008 · C6 Corvette General Discussion - Cold start and rough idle - I've around countless cars over the years but new to the C6. I disconnected the IACs and plugged the IAC air inlets and attempt to lower the minimum idle. It seems to run smooth at all other RPMs but there seems to be another issue which I think is associated with the low RPM. still runs about 900-1100 at idle and engine hot. 4's) and add some timing (16-19* usually) on gasoline to calm the idle/lope at the lower rpm. -Engine surges 200 rpm at idle. The mods have been on for a long time and I dont believe they are causing my issue. Lately the rpm has been dropping really low when I come to a stop light. It also jerks as it comes to a stop. Previous owners have installed non stock heads and cam (seem like mild upgrades, not sure details but nothing crazy). What is the lowest anyone has gone? Aug 14, 2008 · C6 Corvette ZR1 & Z06 [Z06] Idle rpm; Notices. I. zpvf vkmiypnf sgdfhh oefl fykg kpsy zpkso hihqqv nbioqt uuhgjd