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    VWVortex


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    Thread: Rough Idle: Help me diagnose

    1. Member dannyace's Avatar
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      1993 VW Corrado SLC VR6
      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.
      1993 VW Corrado SLC VR6

    2. Member GTIVRon's Avatar
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      92 Corrado SLC, '12 Golf R
      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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    3. Member
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      10-03-2012 02:49 PM #3
      Try resetting the ECU as described at the bottom of this thread.
      Kenji

    4. Member dannyace's Avatar
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      1993 VW Corrado SLC VR6
      10-03-2012 09:25 PM #4
      Tried resetting the ecu, no luck
      1993 VW Corrado SLC VR6

    5. Member dannyace's Avatar
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      1993 VW Corrado SLC VR6
      10-04-2012 01:48 PM #5
      a few more vids:


      1993 VW Corrado SLC VR6

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