High idle on cold startups

1ofakind71

New Member
Joined
Nov 14, 2006
Hello all, I have been having this odd cold start issue since getting my hybrid running and that is when cold starting, the car runs at 1775 rpm and stays there. After the car runs to about 160 degrees if you shut it off and then start it again it will idle down to about 1000 rpm. I have replaced the IAC, cleaned out the TB set the TPS, but the IAC counts will go no lower than 55. I have looked at many other posts on this issue but still cant seem to get this issue solved. Also I am using a aeromotive 340 FP with 8an fuel line from tank to rail and when attempting to boost, I get an AFR at around 13.7 when the boost starts to come up so i get out of it. I don"t know if this issue is related to the idle issue but I figured I would share this as well. Also FP is about 45psi line off Thanks for any answers you mite have.
 
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