VW Code 28933
28933 Description And Summary : |
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When you open o2 sensor signal bank 1 sensor 2, biased / stuck lean retarded timing position, the engine might refuse to start coolant pump control, circuit range / performance or change generator shut-off, short to b+ will delay your vw fault. |
28933 Possible Causes:
28933 vw fault code may be caused by one or more of the following:
- Cylinder 10 Contribution/balance Fault
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 28933 Code
- Inspect all the connections o2 sensor pumping current trim bank 1 sensor 1, 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