pontiac firebird wont start

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10-14-2017, 01:30 PM

abi

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pontiac firebird wont start

my pontiac firebird 3.1 1991 wont start i change .she start only with start pilot for 2 second why

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10-14-2017, 08:44 PM

Pro

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Re: pontiac firebird wont start

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I would check for fuel pressure. I dont know where the schrader valve is on a 3.1. You may want to post your question here for more responses:
https://www.thirdgen.org/forums/tech-general-engine/

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10-14-2017, 09:11 PM

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Re: pontiac firebird wont start

Check fuel pressure, if that’s ok 43.5 than vats
A hz signal is sent to pin f10 of the ecm a blue wire. If you get 30-50hz @ 50-60% the passkey is working. You can also check with a volt ohm meter and should see 2.5 volts.