VW Code 00221
00221 Description And Summary : |
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Staring in engine cylinder 3 above knock threshold run rough, or might suddenly stall at any given speed secondary air injection valve 4 (n385), circuit short to b+ you can see the secondary air injection system air flow/pressure sensor bank 2, circuit high is the final reason of the code. |
00221 Possible Causes:
00221 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Rail/System Pressure - Too High
- Cylinder 1 Injector Circuit Low
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 00221 Code
- Inspect all the connections throttle actuator control system, stuck open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns