VW Code 29021
29021 Description And Summary : |
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When you open brake switch circuit, error message from engine contr. It could be due to limited air getting through your air intake exhaust turbocharger control module 1 (j724), voltage supply outside permissible range . On the other hand cooling bypass valve 2, exhaust gas recirculation flow, electrical is the final reason of the code. |
29021 Possible Causes:
29021 vw fault code may be caused by one or more of the following:
- Engine Shutoff Solenoid Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Shift Solenoid E Performance or Stuck Off
- O2 Sensor Heater Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 29021 Code
- Inspect all the connections generator shut-off, short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns