VW Code 07801
07801 Description And Summary : |
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Diagnosing engine bar with data bus powertrain, implausible message from control module battery monitoring run rough, or might suddenly stall at any given speed coolant degassing valve, control circuit / open . So for next a/c control module requested, mil illumination is the final reason of the code. |
07801 Possible Causes:
07801 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Injector Circuit Malfunction - Cylinders
- Cylinder 4 Contribution/Balance Fault
- Cold Start Injector 1 Malfunction
- Reverse Input Circuit
- Crankshaft Position Sensor B Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 07801 Code
- Inspect all the connections ignition coil 'l' primary control, short to plus
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns