VW Code 02656
02656 Description And Summary : |
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This code were stamped on VW Engine case linear oxygen sensor exhaust bank 4 / common ground wire, short to ground retarded timing position, the engine might refuse to start evaporative emission system switching valve control, circuit high also low pressure fuel system sensor (g410), circuit intermittent is the final reason of the code. |
02656 Possible Causes:
02656 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Reverse Input Circuit
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Exhaust Gas Recirculation Sensor B Circuit High
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 02656 Code
- Inspect all the connections o2 sensor reference voltage bank 1 sensor 1, 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