frankmarroquin

iTrader: (31)

K this car belongs to son kid I know... He purchased a 98 Camaro Z28 Roller And installed a LT1 Complete from 97Engine, 94Engine harness, 94Body Harness, 94CPU But all it does is cranks, starts for a couple of seconds then shuts off. I think it maybe the vats but what do you all think? Think He should send the CPU to have the VATS removed or you guys think the problems else where?

JWStevens

iTrader: (1)

Is it getting plenty of fuel?

frankmarroquin

iTrader: (31)

They will be bringing me the car tomorrow so ill reup as soon as I know more whether there's spark and fuel.

WS Sick

If I remember correctly if Vats comes into play it won't even turn over.

05HD

Sounds like VATS fuel disable to me and it would be perfectly logical if he is using the ignition key from the 98 with computer from a 94.

gregrob

iTrader: (8)

Delete VATS

RogueLT1

iTrader: (2)

Delete vats or get the proper vats setup for the computer.

Spartan7

iTrader: (7)

Are you using the 94 steering column/ignition cylinder and 94 BCM?

EDIT: Reread your post. If it starts and then immediately dies, it could be any number of things. Start checking the regular stuff.

Since it's a 97 engine and 94 harness, which year ICM and coil are you using?

RogueLT1

iTrader: (2)

Does the 97 opti function properly with the 94 harnesses and computers?

4K+Converter

Could be a problem with the PCM too. I fried mine once flashing it myself when the battery blew up. When I tried to start it up after that, it would do the same thing you've described.

With that said, I'd disable VATS first like everyone has suggested. Its by far the easiest, cheapest, and most likely problem.

frankmarroquin

iTrader: (31)

Thanks guys turned out just being the vats... Bought the chip on ebay and it started right up.