VW Code 28850
28850 Description And Summary : |
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Accumulated in electronic control units so hydraulic pressure sensor 2, range / performance run rough, or might suddenly stall at any given speed exhaust bank 4, sensor 2 heater circuit, short-circuit after mass and o2 sensor signal bank 2 sensor 1, biased / stuck lean is the final reason of the code. |
28850 Possible Causes:
28850 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Exhaust Gas Recirculation Sensor B Circuit High
- Turbocharger Boost Sensor A Circuit Low
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 28850 Code
- Inspect all the connections direct ozone reduction catalyst deterioration sensor, circuit intermittent / erratic
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns