Problem Reports

Porsche 911

Report: Misfire due to failed mass air flow sensor or failed purge valve

• irregular idle
  My mechanic has told me that there is an air leak which is causing an irregular idle with my 92...

  Q&A > Porsche > 1992 Porsche 911

• Fuel mixture problems due to air flow meter issues
  Issues with the air flow meter flap or calibration can cause fuel mixture control problems.

  Common Problems > Porsche 911

• Ports for secondary air flow may clog at cylinder head/cam housing area
  Ports and passages for secondary air flow can clog at the cylinder head/cam housing area. Parti...

  Common Problems > Porsche 911

• Engine misfire or excess fuel consumption can damage catalytic converter
  If engine misfiring, rough running, or fuel consumption issues are not resolved quickly, the catalytic converter can overheat and fail.

  Common Problems > Porsche 911

• Failed cylinder head temperature sensor
  A failing cylinder head temperature sensor can cause erratic running or the engine to cut out e...

  Common Problems > Porsche 911