I installed a custom OS on a 04 Z06 with a bad mass air meter. Its a 408 with good heads/ big cam etc. I got it running really good good with a MAF off my own car but as soon as the MAF is disabled it will not run at all.
I think I could figure this out if it would fire and run for a bit but it cranks, fires and immediately dies.
Am I missing something? I'm running speeddensity on my personal ETC vette with no issues, this one I can't get going on.
Any ideas?