cam swap and now car starts and dies?
#1
cam swap and now car starts and dies?
just wondering if anybody has run into this before? it's an ls1 with a 228/230 cam, ported stock tb,slp lid, long tubes, ory, 3600 stall. the car has been dyno tuned. this only happens on a start after the car has sat for a few hours. if i start the car it will fire up and then die. if i start the car and give it a little throttle it will rev and then idle fine. i'm at a loss here. just hoping someone can help me out with some good input. thanks guys!
#7
TECH Addict
Thre's are a few sections of the tune specifically for starting - one of them is start up friction which gives the engine a few seconds of extra idle and then decays quickly - it sounds like you need to fine tune the start up tune.
Have a look here and you can see what I mean:
https://ls1tech.com/forums/pcm-diagn...er-tuning.html
Have a look here and you can see what I mean:
https://ls1tech.com/forums/pcm-diagn...er-tuning.html
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#9
Thre's are a few sections of the tune specifically for starting - one of them is start up friction which gives the engine a few seconds of extra idle and then decays quickly - it sounds like you need to fine tune the start up tune.
Have a look here and you can see what I mean:
https://ls1tech.com/forums/pcm-diagn...er-tuning.html
Have a look here and you can see what I mean:
https://ls1tech.com/forums/pcm-diagn...er-tuning.html
#10
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