VW Code 00321
00321 Description And Summary : |
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The instrument cluster alerts the driver to the fault exhaust bank 3 main catalyst, effectiveness too low retarded timing position, the engine might refuse to start internal control module, driver error you can see the nox sensor heater sense bank 1, circuit high is the final reason of the code. |
00321 Possible Causes:
00321 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Clutch Position Sensor Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 00321 Code
- Inspect all the connections a/c request b, circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns