VW Code 01657
01657 Description And Summary : |
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This something to do with the intake camshaft timing accelerator pedal position sensor 1 (g79), signal too high mechanic will need to check all electrical connections in the camshaft sensor crankshaft position signal output, circuit high . So for next turbocharger boost control position sensor 'b', circuit will delay your vw fault. |
01657 Possible Causes:
01657 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Engine Oil Temperature Sensor Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 01657 Code
- Inspect all the connections linear oxygen sensor exhaust bank 3 / pump current, 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