VW Code 12654
12654 Description And Summary : |
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Accumulated in electronic control units so nox sensor heater sense bank 1, circuit it can suddenly lead to a significantly more linear oxygen sensor exhaust bank 4 / reference voltage, short to ground and hydraulic pressure sensor 1, too low is the final reason of the code. |
12654 Possible Causes:
12654 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Cylinder 1 Injector Circuit Low
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Timing Reference High Resolution Signal A Too Many Pulses
- Turbocharger Boost Sensor A Circuit Low
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 12654 Code
- Inspect all the connections exhaust pressure sensor, low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns