Sudden New Issue:
It has a tough time starting, and when it does finally catch, the idle is surging around 300-400 rpms until it gives up. I can give it gas, and rev it up no problem, but as soon as I release throttle, it bogs down and dies again.
No codes, no warning lights. Good oil pressure. Good voltage check. Any ideas??

Mods in sig, but they're several months old, and it was tuned by A&ACorvette up in L.A. so I don't think they're causing the problem.
It's probably going to wait until I'm late to the airport or something crazy before it does it again.
Cheers all.






