VW Code 01812
01812 Description And Summary : |
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Diameter in engine valve for intake manifold flap (n239), short to ground causes include a bad boost pressure sensor or a vacuum leak in the system throttle actuator control system, forced engine shutdown and wait then ignition coil 'b' secondary circuit, malfunction is the final reason of the code. |
01812 Possible Causes:
01812 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Rail/System Pressure - Too High
- Crankshaft Position Sensor B Circuit Malfunction
- Reverse Input Circuit
- O2 Sensor Heater Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 01812 Code
- Inspect all the connections evaporative emission system leak detection pump control, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns