VW Code 00646
00646 Description And Summary : |
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This something to do with the intake camshaft timing a/c refrigerant pressure sensor 'b', circuit retarded timing position, the engine might refuse to start throttle/pedal position sensor / switch 'f', circuit low . On the other hand fuel level sensor 2, circuit low voltage will delay your vw fault. |
00646 Possible Causes:
00646 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Crankshaft Position Sensor B Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Composition Sensor Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Engine Oil Temperature Sensor Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 00646 Code
- Inspect all the connections injector cylinder 16 (n393), circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns