BigOgre. A Rough Idle or a SES can sometimes be caused by a change in the throttle body position sensor calibration. To correct any accidental changes in throttle body calibration, use these procedures to recalibrate. how to re-learn the idle If your battery has been disconnected for any reason, you may need to perform this procedure in order for the computer to relearn how to idle. The idle has always been very low @ 500 rpm. The alternative is for you to do the "Idle Relearn Procedure." Because, the (IAC); is programmed to regulate and maintain the engine idle speed at a constant rate. So, one of the most common symptoms associated with a problematic idle air control valve (IAC) is irregular idle speed. It was even lower when I bought it, sometimes as low as 300 rpm. How do I get the idle speed resync proceedure for c6 corvette ls2 2005 - Answered by a verified Chevy Mechanic We use cookies to give you the best possible experience on our website. The car was parked for about a month while I was working on my interior. Stainless a Steel 1 7/8" W/Cats and a Full Custom Stainless Steel Dual Exhaust, Tune Time's Blower Cam The pictures within this how … BTW: You'll know if you HAVE to do a Crank Relearn because it sets the Crank Relearn DTC every time you key on or start the engine. First you need to clear any trouble codes that may exist (from driving it without performing relearn or trying to upshift and decel at the same time which throws up the CEL and stabilitrak off and reduced power light which sucks). 09-13-2005, 05:17 PM #4. You must get the timing just right Use a stop watch to help the precision of your timing. 1968 Camaro Ls2 6 speed. He is an HPTuners member on this site. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. If the valve fails or has any issues, it can cause the idle speed to be thrown off. Currently the Tech2 is the only way to do a crank relearn on an LS2 or later series. Turned it on multiple times.. all good. I take ABSOLUTELY ZERO CREDIT for the length of material you're about to read, however I have made a few comments in-text that you can see which I will highlight in green. 2008 TrailBlazer SS AWD 3SS, Keystone Camaro SS Style Hood, LS1 Dual Fans, LS7 TB, 80lbs Injectors, Meth Injection, TVS2300 @14lbs, Innovators West 10% Overdrive 8-Rib Crank Pulley & T-Mac's 2.9" RIP 8-Rib Pulley, A.R.H. Note that these idle speeds are for the engine idling at normal operating temperature. I have a heads / cam LS2 and it is tuned for that, I just put a Fast 102 intake manifold on it with the stock throttle body. I pulled the TB (drive by wire) off and cleaned it really well and it bumped up to about 600-700 for a while but now it's back to 500. Irregular Idle Speed. View Profile View Forum Posts View Blog Entries View Articles psn/xbl = … LS2.Com Moderator Join Date Feb 2004 Location NE PA Posts 28,999 vCash 500. Note: These procedures are a little tricky to do. Here is the relearn procedure for our LS2 engines for throttle body: 1. IDLE TUNING Foreword by Rinkrat456: This article is literally copied and pasted from Krambo's Silverado SS page. Last night, I finally got the chance to move it. A cold engine will generally require an idle speed of 100-150 RPM greater than an engine at normal operating temperature, so be sure to set your target idle speed table accordingly. I've known a few other trucks to do the same thing, but for the most part 850-ish … I bought my Tahoe with 77,000 miles on it. At a constant rate constant rate to be thrown off do a crank relearn on LS2. Crank relearn on an LS2 or later series 6 speed Camaro LS2 6 speed This. For throttle body position sensor calibration you to do the `` idle relearn procedure for LS2... 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