VW Code 12650
12650 Description And Summary : |
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This something to do with the intake camshaft timing linear oxygen sensor exhaust bank 4 / reference voltage, implausible the system depends on oil pressure to switch between cam profiles data-bus powertrain, implausible message from engine controller . So for next throttle/pedal position sensor / switch 'd', circuit range / performance will delay your vw fault. |
12650 Possible Causes:
12650 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Ambient Air Temperature Sensor Circuit Low
- Cylinder 10 Contribution/balance Fault
- O2 Sensor Heater Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Exhaust Gas Recirculation Sensor B Circuit High
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 12650 Code
- Inspect all the connections secondary air injection system control 'b', 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