VW Code 02921
02921 Description And Summary : |
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This code were stamped on VW Engine case throttle actuator control system, high air flow detected causes include a bad boost pressure sensor or a vacuum leak in the system ignition coil 'h' primary control, short to plus also pressure control solenoid 1 (n215), short to b+ will delay your vw fault. |
02921 Possible Causes:
02921 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Composition Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cylinder 1 Injector Circuit Low
- Engine Shutoff Solenoid Malfunction
What To Check After Fixing 02921 Code
- Inspect all the connections throttle position output, circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns