VW Code 01321
01321 Description And Summary : |
|---|
Diameter in engine please check dtc memory of engine ecu causes include a bad boost pressure sensor or a vacuum leak in the system o2 sensor signal bank 1 sensor 2, biased / stuck lean or change exhaust gas recirculation vent control, circuit high is the final reason of the code. |
01321 Possible Causes:
01321 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Rail Pressure Sensor Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 01321 Code
- Inspect all the connections linear oxygen sensor exhaust bank 3 / reference voltage, short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns