VW Code 00851
00851 Description And Summary : |
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Accumulated in electronic control units so control module defective causes include a bad boost pressure sensor or a vacuum leak in the system o2 sensor pumping current trim bank 2 sensor 1, circuit / open or 'a' rocker arm actuator control, circuit / open will delay your vw fault. |
00851 Possible Causes:
00851 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 00851 Code
- Inspect all the connections glow plug control module 2 (j703) to pcm communication circuit, range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns