Question about 1997 Chevrolet Cavalier

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1997 Chevy Cavalier Starts and then dies after a few seconds.

I was driving it and it just died, asked around found fuel pump was not coming on, replaced fuel pump. still did not come on, and would not run at all. checked some more found car has Passlock anti-theft on it. checked ignition switch, failed basic test. replaced, reprogrammed , still not starting. finally took car to dealer to have them do diags and fix. GM computers would not work on car. they told me computer was bad, replaced computer. Fuel pump comes on and now starts and dies. GM dealer said ignition switch and instrument cluster bad. will only cost 1500.00 to fix. I said no thanks. Check fuel injectors and they get pulses while car is running once it dies, they do not unless you turn off key and try it starting again. Replaced instrument cluster and it still will not start.
At this point I am out of ideas.

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  • Rog Mar 12, 2012

    Problem Solved! - I should have posted this back when I figured it out.
    It had two problems that required attention.

    1) when the computer was replaced, the dealer broke one of the grounds.
    2) This would not allow the Anti Theft system to be reprogrammed.

    I was checking all the voltages and continuity to all the wires when I found the irregularity. I did not think much about it at first because of the way the wiring diagram laid it out. When I plugged my Code reader into the connector it completed the circuit and the dash board lit up. Reprogrammed the antitheft car now runs.
    I did have to track down the wire repair it. But the car has been running ever since.
    So, sheframer349, You were on the right track, Just had to find the broken ground too.

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Find a good auto wrecker, and try replacing the mass air flow sensor.

Posted on May 14, 2009

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When u replaced the computer it tripped the anti-theft system because the code stored in the new computer no longer matched the ignition. when the anti theft system is triggered on a cavalier it allows the car to start

Posted on Mar 12, 2012

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