[Gmecm] Re: Vortec L31 oscillating at idle

[Scott Pearson]

----- Original Message ----- 
From: "Andrew Gibson" <andrewsharyn at yahoo.com>

> The scan tool proceedure is in the functional tests menu. It has you start 
> with the key on engine off, start the engine, then it initiates the learn 
> commnad, and asks you to snap the throttle to get the engine up to the 
> fuel cut out limiter. Then it's done. Takes about 30-45 seconds if your 
> scan tool is capable. Mine is the Mac Mentor (OTC Genisis platform) Gm's 
> OE scan tool of course should be able to do it.
>

That is a problem on OTC's end. With the Tech 2, as soon as it reaches the 
desired RPM point (~4000RPM), it will cut out. The Genisys likes to bounce 
it off the rev limiter for that 30-45 seconds. Btw, last time I tried the 
Genisys will not do a relearn on an LS1. Bouncing off a 6200 rev limiter 
sitting still is not the way I like to find out.

Scott