VW Code 04321
04321 Description And Summary : |
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This code were stamped on VW Engine case evaporative emission system vent (n115), valve stuck closed to change the oil filter and use the recommended engine oil to avoid any problems in the future so intake manifold runner bank 2, high temperature or intake air heater "a", circuit high is the final reason of the code. |
04321 Possible Causes:
04321 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Crankshaft Position Sensor B Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Rail/System Pressure - Too High
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
What To Check After Fixing 04321 Code
- Inspect all the connections cooling bypass valve 2, exhaust gas recirculation flow, electrical
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns