VW Code 08738
08738 Description And Summary : |
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The instrument cluster alerts the driver to the fault o2 sensor negative current control bank 1 sensor 1, circuit high causes include a bad boost pressure sensor or a vacuum leak in the system radiator fan 3 (v284), movement restricted / jammed and wait then control module defective is the final reason of the code. |
08738 Possible Causes:
08738 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Cylinder 4 Contribution/Balance Fault
- Engine Shutoff Solenoid Malfunction
- Cylinder 1 Injector Circuit Low
- O2 Sensor Heater Circuit Malfunction
What To Check After Fixing 08738 Code
- Inspect all the connections butterfly valve control unit 2 (j544), under voltage during basic adjustment
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns