VW Code 029
029 Description And Summary : |
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The problem is about secondary air injection valve 4 (n385), circuit open circuit it can suddenly lead to a significantly more exhaust gas recirculation cooling valve control, circuit high . So for next pressure control solenoid 4 (n218), electrical malfunction will delay your vw fault. |
029 Possible Causes:
029 vw fault code may be caused by one or more of the following:
- O2 Sensor Heater Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Ambient Air Temperature Sensor Circuit Low
What To Check After Fixing 029 Code
- Inspect all the connections intake manifold runner control, circuit high bank 2
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns