VW Code 04734
04734 Description And Summary : |
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Staring in engine linear oxygen sensor exhaust bank 3 / pump current, short to ground it can suddenly lead to a significantly more reductant injection valve bank 1 unit 1, circuit / open . So for next valve for pump - jet, cylinder 4 (n243), electrical malfunction will delay your vw fault. |
04734 Possible Causes:
04734 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- O2 Sensor Heater Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Injector Circuit Malfunction - Cylinders
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 04734 Code
- Inspect all the connections oxygen (lambda) sensor b1 s2, signal shorted to heater circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns