83 _Z28_CFI

Hi, my name is Jake, I own a 83 z28 Camaro with cross-fire injection. The motor started to cut out. Not right away though. If you start it runs good for a couple minutes. Then it starts acting up, Cutting out with any pressure to the throttle. If you shut it off and start it again it will be fine for about a minute then cut out. The injectors look like they are giving enough fuel. I need help. Thanks.

parkers Z28

Have you checked for vacuum leaks ?
next time it does this pump the brakes and see if it changes anything
vacuum runs through the brake booster by pumping the brakes your going to build up vacuum
this may not work in all cases ... try spraying WD40 or brake cleaner , carb cleaner
on all vacuum hoses and all connections.... if the engine picks up were your spraying you found the leak

Z28Freak86

No check engine light or anything? Just trying to rule some things out. I'm thinking it's a computer issue, mainly with your oxygen sensors. Because you say It runs good for a while, that makes me think your system is in "open loop", and once a certain engine temp, or time has elasped, it goes into closed loop and gives your symptoms. Usually replacing the oxygen sensors corrects that problem.