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treyhitman

July 12th, 2019 10:27 PM

****need help**** camaro iroc z28 89

Car starts only for 1sec and dies right after. I have replaced fuel pump and fuel filter also replace spark plugs and distributor and wires still the same problem. Dose any know what should I do
need some more help.
thanks

chevy Iroc Z28 1989

oilcanhenry

July 13th, 2019 4:13 AM

Quote:

Originally Posted by treyhitman (Post 431555)

IAC, throttle body, fuel injectors, ECM, ICM fuel pressure regulator are the likely culprits here. Put a scan tool on it. OBD I not OBD II.

Irish_alley

July 13th, 2019 12:46 PM

does this vehicle have a VATS system? this the TPI motor?

treyhitman

July 13th, 2019 6:31 PM

Yes its been bypassed already.

treyhitman

July 13th, 2019 6:49 PM

We Checked the throttle body it's fine. When put starting fluid it runs in the throttle body. I looked at the fuel pressure regulator its seen to keep the car on longer when I take off the vacuum line the car seems to stay running a little be longer but.I Don't really know to test these out to see if that the problem
The ICM was replaced and i don't know if thats a bad one I bought but when the old was in still the same problem.
ECM I think its working I'm not getting any codes from the obd 1 only then I'm getting 12 12 12 thats it.
I'm not getting fuel injector pulse at all on the rail
and checked all fuses
please if there any thing else i should test out let me know thanks.

L79Camino

July 13th, 2019 10:43 PM

I had an '82 Z-28 with the same problem. It was the ECM. you can get one re-manufactured from Summit but you might want to get the PROM also.

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