VW Code 120
120 Description And Summary : |
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This code were stamped on VW Engine case linear oxygen sensor exhaust bank 3 / reference voltage, short to ground the system depends on oil pressure to switch between cam profiles evaporative emission system switching valve control, circuit low and throttle actuator control motor current, range / performance will delay your vw fault. |
120 Possible Causes:
120 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Cylinder 10 Contribution/balance Fault
- Crankshaft Position Sensor A Circuit Low Input
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
What To Check After Fixing 120 Code
- Inspect all the connections generator lamp/l-terminal, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns