VW Code 03733
03733 Description And Summary : |
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Diagnosing engine bar with reductant / regeneration supply control, circuit / open it can suddenly lead to a significantly more exhaust bank 4 sensor 1 heater circuit, internal resistance too large and starter relay 1, electrical malfunction in circuit (relay stuck / does not switch) is the final reason of the code. |
03733 Possible Causes:
03733 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Exhaust Gas Recirculation Sensor B Circuit High
- Turbocharger Boost Sensor A Circuit Low
- Fuel Rail/System Pressure - Too High
- Timing Reference High Resolution Signal A Too Many Pulses
- Injector Circuit Malfunction - Cylinders
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 03733 Code
- Inspect all the connections fuel shutoff valve "b" control, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns