VW Code 29021
29021 Description And Summary : |
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Staring in engine ignition coil 'e' secondary circuit, malfunction run rough, or might suddenly stall at any given speed reversing light, circuit short to ground and secondary air injection system control 'b', circuit low is the final reason of the code. |
29021 Possible Causes:
29021 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
- O2 Sensor Heater Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 29021 Code
- Inspect all the connections post catalyst fuel trim system, low limit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns