Hello everyone. Last week I finished setting up my 383 LT1 in my car. I ran it for about 30+ seconds, I shut it off, and then started it again, and ran it about another 10 seconds. Now a week later my car won't idle. It will only even start maybe 1 out of 3 times and die. Fuel pressure gets up to ~43-45psi. I have the aeromotive adjustable FPR(set to ~43-45psi) I have a new ACdelco IAC valve, that I ran two years ago. The computer system is a full Torqhead set-up. I did re-pin the MAP plug between today and last week, I also plugged in the throttle tcs system, other than that nothing changed. Any ideas would be greatly appreciated. Thank you!

 

check for vacuum leaks would be my first step.

 

Will do

 

It was the brake master cylinder vacuum hose that wasn't connected. Lol

 

Have done that same exact thing.

 

glad it was something simple, always check the easy stuff first