hey guys, since getting this engine in the car, i've been having a couple issues...they have been solved with replacing the faulty FPR, and replacing my SVO24lb injectors with Southbay's Bosch 24lb injectors. When the car is warm, it runs great! can burn the tires at a stand still, chrips into second gear, super quick compared to my 305, but i'm having an issue that wont go way.
for whatever reason, when the engine is cold, the thing wont hold idle. it'll start and immediately die. it wont stay idled until the car is warm. judging by the noise i was hearing under the hood yesterday, i think there is an air leak somewhere in the intake which i need to figure out.
at first when it was warm it wouldnt hold idle either, i had Tuned Performance write a new chip with the idle kicked up to 750rpms, but i'm wondering if maybe the closed loop never got bumped up too?

 

If it's only when the engine is cold then you can ignore the o2 sensor as it will be in open loop anyway. I'd start with the temp sensors since it runs good for you while warm. Check both the intake air and coolant temp sensors using the table tunedperformance posted here...https://www.thirdgen.org/forums/tech...ng-closed.html

 

Ok thanks, next time I get it out I'll take a look at it