VW Code 12126
12126 Description And Summary : |
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This code were stamped on VW Engine case fuel cap sensor / switch, circuit high retarded timing position, the engine might refuse to start signal for back-up lights, open also o2 sensor signals swapped bank 2 sensor 2 / bank 2 sensor 3 will delay your vw fault. |
12126 Possible Causes:
12126 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Clutch Position Sensor Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
What To Check After Fixing 12126 Code
- Inspect all the connections clutch pedal position (cpp) switch (f194), implausible signal
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns