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944S2 Rough Idle

  • 1989
  • 944 S2
136 000
North Carolina

Heavily serviced all original 944s2.  I would like to see if there is a way to make the engine run smoother.  The car has new timing belts, plugs, rebuilt cpu, 02 sensor, no vacuum leaks, fuel injectors cleaned and checked for flow, fuel pump is strong, etc.  I am hearing that this is a native issue to the 3.0 motor configuration and cpu but must believe there is a way to make the car behave a little more modern from an idle perspective. 

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