Quote:
Originally Posted by tnova
I've been following the posts closely as I'm rebuilding my LT5 (160k miles) to with GVD full porting including the TB. I'll have to go through the idle setting. Short block is done, waiting on the top end but not rushing. Thanks.
Tony
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Tony, glad the posts may help you out. On the idle issue from what I have learned from reading and relayed by phone conversations is to let the engine warm up fully to operating temps in Closed Loop. Check your IAC's and TPS settings. It would also be good to have access to a Tech 1 or similar scanning device. After fully warmed up check your IAC counts at idle to see where they fall and also check your idle. If your counts and idle are within the range, then go far a test drive and do multiple stops and starts making sure you come to full complete stops for more than a few seconds. Each time you come to a complete stop, check where your IAC counts are and what your idle is doing. If you need to make adjustments to bring your IAC counts up, you will need to turn the min-air adjustment screw counter clockwise (which will close the primary blade more) ever, ever so very slightly for each adjustment you do. Blip the throttle and let the idle settle down for a few, and then set your TPS to .54v, again blip the throttle and let everything settle down. Then what I feel is the most important item, is to go for a test drive like you previously did and follow the same procedure as you did before. Come back and take your readings again, make any adjustments
that you need to do to get your counts in range.
If your idle is higher than it should be, then you may have a different or additional problem that will need to be addressed.
Most of you probably already know this, but I thought I would post what is working for me. This has been quite a learning experience for me and I very much appreciate the certain individual who has educated me through this during this time.
