VW Code 29556
29556 Description And Summary : |
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Staring in engine exhaust bank 4 oxygen sensor before catalyst, heater circuit, regulation at upper limit it can suddenly lead to a significantly more relays for small amount of heat (j359), disconnected or short to ground you can see the injection pump, fuel calibration not learned will delay your vw fault. |
29556 Possible Causes:
29556 vw fault code may be caused by one or more of the following:
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Engine Shutoff Solenoid Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
What To Check After Fixing 29556 Code
- Inspect all the connections injector cylinder 16 (n393), 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