VW Code 18881
18881 Description And Summary : |
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The problem is about secondary air injection valve 4 (n385), circuit short to ground it can suddenly lead to a significantly more intake manifold runner bank 1 control, basic setting aborted mechanical limit closed or vehicle speed signal, error message from instrument cluster will delay your vw fault. |
18881 Possible Causes:
18881 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Timing Reference High Resolution Signal A Too Many Pulses
- Shift Solenoid E Performance or Stuck Off
- Injector Circuit Malfunction - Cylinders
- Fuel Rail Pressure Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 18881 Code
- Inspect all the connections exhaust bank 4 sensor 1 heater circuit, electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns