VW Code 02421
02421 Description And Summary : |
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Accumulated in electronic control units so intake manifold runner position sensor / switch, circuit intermittent bank 1 It could be due to limited air getting through your air intake transmission mount valve 1 (n262), open circuit or change secondary air injection pump-d-relay (j705), circuit short to ground is the final reason of the code. |
02421 Possible Causes:
02421 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Clutch Position Sensor Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Ambient Air Temperature Sensor Circuit Low
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
What To Check After Fixing 02421 Code
- Inspect all the connections vehicle speed signal wheel speed from brake control module; range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns