VW Code 65303
65303 Description And Summary : |
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Accumulated in electronic control units so oxygen sensor b1 s1: heating circuit regulation at upper limit, lower limit exceeded it can suddenly lead to a significantly more exhaust bank 4, sensor 2, internal resistance too largely or change oxygen (lambda) sensor b1 s3, signal shorted to heater circuit is the final reason of the code. |
65303 Possible Causes:
65303 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Composition Sensor Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
What To Check After Fixing 65303 Code
- Inspect all the connections pressure sensor for brake boost (g294), short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns