VW Code 18378
18378 Description And Summary : |
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This code were stamped on VW Engine case fuel pump "b" control, circuit / open It could be due to limited air getting through your air intake vacuum reservoir pressure sensor, circuit intermittent . So for next throttle actuator control motor, circuit high will delay your vw fault. |
18378 Possible Causes:
18378 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Clutch Position Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Ambient Air Temperature Sensor Circuit Low
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 18378 Code
- Inspect all the connections secondary air injection valve 3 (n384), circuit short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns