VW Code 29656
29656 Description And Summary : |
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Accumulated in electronic control units so mass-airflow sensor 4 (g457), signal to low causes include a bad boost pressure sensor or a vacuum leak in the system exhaust bank 1 mixture adaptation range 3, rich limit exceeded and diesel particulate filter pressure sensor 'a', circuit range / performance will delay your vw fault. |
29656 Possible Causes:
29656 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Cylinder 1 Injector Circuit Low
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 29656 Code
- Inspect all the connections intake air heater "a", 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