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intermittent P1101, Surprise!!

101K views 52 replies 16 participants last post by  Kozman61  
If cleaning the MAF cleared it for a few days, I would suspect a borderline bad MAF providing there is no air leak between the MAF and throttle body.
Throttle body needs to be clean also as it can set the same code.
Only a high-level scan tool can check the frequency the MAF is running at and reporting to the PCM to see what it is doing.
|What are the Possible Causes of the Code P1101 Chevrolet?
  • Air leak between the Mass Air Flow (MAF) sensor and Throttle Body
  • Restricted Air Filter
  • Dirty Throttle Body
  • Dirty Mass Air Flow sensor
  • Faulty Mass Air Flow Sensor
  • Mass Air Flow Sensor harness is open or shorted
  • Mass Air Flow Sensor circuit poor electrical connection
 
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