VW Code 09939
09939 Description And Summary : |
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This something to do with the intake camshaft timing fuel mixture control adjustment range 2, lower limit not reached retarded timing position, the engine might refuse to start secondary air injection pump-c-relay (j704), circuit electrical malfunction you can see the exhaust gas temperature sensor, bank 1 sensor 4, circuit low will delay your vw fault. |
09939 Possible Causes:
09939 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Reverse Input Circuit
- Timing Reference High Resolution Signal A Too Many Pulses
- Crankshaft Position Sensor A Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
What To Check After Fixing 09939 Code
- Inspect all the connections vacuum reservoir pressure sensor, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns