VW Code 28791
28791 Description And Summary : |
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Accumulated in electronic control units so bank 1; system too lean at idle It could be due to limited air getting through your air intake control module throttle actuator position, performance also altitude adaptation, signal out of tolerance will delay your vw fault. |
28791 Possible Causes:
28791 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor B Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 28791 Code
- Inspect all the connections exhaust gas temperature sensor 2 bank 1 (g448), range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns