I have a 2005 GTO Auto with a 3200 Vigilante converter, Pacesetter longtube headers, magnaflow catback, Lingenfelter cold air intake, ported throttle body and a 228/232 .588/.595 114LSA cam... When we first installed it, on stock tune it would fire right up and idle on cold start, warm start it did not like at all and would die instantly.
Working with a friend that does a lot of tuning, we got the car warm starting and idling good last night, but as I feared, cold start this morning stumbled and died quick... my neighbors were not happy with me revving the car to get it running at 6:30am...
Attached is the current work in progress file as well as a log from last night with it idling at 800RPM, I played with the Minus spark option in the VCM Scanner a bit in that log too.
Also there is a log of my first attempt at starting the car this morning, and the next start where I held the rpms over 1000 and pulled the trans back into R. When I let off in R it surged back twice (You can see this in the log) and I almost hit my neighbors car.
Any suggestions on where to go from here? I have been thinking making the Startup airflow in colder temps needs bumped up more?