VW Code 04239
04239 Description And Summary : |
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This code were stamped on VW Engine case oxygen (lambda) sensor b1 s3, signal shorted to heater circuit It could be due to limited air getting through your air intake exhaust gas recirculation vent control, circuit high and secondary air injection system pump bank 2, stuck on will delay your vw fault. |
04239 Possible Causes:
04239 vw fault code may be caused by one or more of the following:
- Engine Oil Temperature Sensor Malfunction
- Engine Shutoff Solenoid Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Ambient Air Temperature Sensor Circuit Low
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 04239 Code
- Inspect all the connections evaporative emission system switching valve, performance / stuck open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns