VW Code 09401
09401 Description And Summary : |
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This code were stamped on VW Engine case exhaust bank 2 sensor 1 oxygen sensor signal, implausibly lean causes include a bad boost pressure sensor or a vacuum leak in the system throttle/pedal position sensor / switch 'f', circuit range / performance . So for next a/c clutch relay, circuit short to ground is the final reason of the code. |
09401 Possible Causes:
09401 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 4 Contribution/Balance Fault
- Crankshaft Position Sensor A Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Reverse Input Circuit
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 09401 Code
- Inspect all the connections 'a' rocker arm actuator 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