LT1 Based Engine Tech 1993-1997 LT1/LT4 Engine Related

New ecm now won't start 94 camaro

Old 04-19-2019, 06:22 PM
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New ecm now won't start 94 camaro

Put new ecm in car now. Now car won't start. Only starts with ether. And only for a few seconds.put new fuel pump in. And injectors, getting fuel to valve top of engine. Anyone?
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Old 04-19-2019, 10:10 PM
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Re: New ecm now won't start 94 camaro

Why did you replace the PCM (last year for the ECM was 1993)? Did the engine start before you replaced it?

Why did you replace the fuel pump? Did you check the pressure before replacing it? What was/is the fuel pressure when the pump primes for 2 seconds, then shuts off? Have you scanned it for codes?

Do you have spark at the plugs? ...... at the coil wire?
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