LT1 Check Engine Light Intermittent with Ignition On - F-Body.com CAMARO / FIREBIRD Forum

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LT1 Check Engine Light Intermittent with Ignition On

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  • LT1 Check Engine Light Intermittent with Ignition On

    When I first turn on the ignition, sometimes the CEL comes on and stays on.
    Other times it comes on for half a second, goes off, then comes back on again.
    I think once it even came on, went off and stayed off.

    (This is with no engine cranking happening)

    Is this normal behavior, or does it mean there's a crossed wire somewhere?

    (The service manual says the check engine light is supposed to come on when the ignition is turned on, as a bulb test.)
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