VW Code 12781
12781 Description And Summary : |
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The problem is about linear oxygen sensor exhaust bank 2 / pump current, short to ground It could be due to limited air getting through your air intake throttle actuator control system, forced engine shutdown and wait then direct ozone reduction catalyst deterioration sensor, circuit high is the final reason of the code. |
12781 Possible Causes:
12781 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Fuel Rail Pressure Sensor Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 12781 Code
- Inspect all the connections crash shut-down activated
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns