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Thread: Rough Idle: Help me diagnose

  1. dannyace
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    Rough Idle: Help me diagnose

    10-03-2012 01:10 PM #1
    Just rebuilt the motor (obd1 dizzy) with fresh gaskets and chains etc. Car has a rough idle, RPMs dip down, and the car will often stall when coming to a stop. Any thoughts on what the cause is?

    So far, I've cleaned the MAF and ISV, and tried swapping out ECUs. Same deal. My next guess is crank or knock senors, fuel injectors or maybe the blue coolant temp sensor?

    Last edited by dannyace; 10-03-2012 at 01:21 PM.
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  3. GTIVRon
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    10-03-2012 01:57 PM #2
    Check to make sure all connectors are on right. Mine disbthe same thing when the egr and isv connectors were crossed.

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  4. Kenji
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    10-03-2012 02:49 PM #3
    Try resetting the ECU as described at the bottom of this thread.
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  5. dannyace
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    10-03-2012 09:25 PM #4
    Tried resetting the ecu, no luck
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  6. dannyace
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    10-04-2012 01:48 PM #5
    a few more vids:


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