just got engine installed
07-17-2012, 12:19 PM
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just got engine installed ok i just got my lq4 with ls3 heads, ls3 intake, and a fairly large cam. But here the problem i can start it up and let it idle and it fine but once it driven just a little bit like 20 feet the idle jumps to 2500-3000 rpms it isn't dyno tuned yet but it has a tune put on it to make it run from the guy thats going to tune the car. So I'm not sure what the problem is?
07-17-2012, 01:03 PM
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just drove it again its stays at 3,000 rpms now. before i could turn the screw out on the throttle body and it would stay down until i drove it and now I'm out of room to adjust the throttle body. Any ideas?
07-17-2012, 03:52 PM
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If you have a scan tool try post #6 in this post..Iac relearn.https://ls1tech.com/forums/pcm-diagn...-idle-ls1.html
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07-17-2012, 09:02 PM
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from what i understand the l92/ls3 heads don't need a large cam. can actually hurt performance. did you select the cam yourself or did someone spec it for you?
no idea if it relates to you're problem though....
no idea if it relates to you're problem though....
07-17-2012, 10:29 PM
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i guess "large" was a bad description lol it was spec'd for the l92 ls3 heads and I think i got it figured out the idle adjustment screw tightens its self up and raises the idle so i just have to find a way to keep the screw in one spot
