VW Code 28891
28891 Description And Summary : |
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Diameter in engine angle sensors 1 for butterfly valve drive 2 (g297), signal too largely causes include a bad boost pressure sensor or a vacuum leak in the system idle speed control throttle position, electrical malfunction or change vehicle speed sensor 'b', range / performance will delay your vw fault. |
28891 Possible Causes:
28891 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Rail/System Pressure - Too High
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Fuel Temperature Sensor B Circuit Range/Performance
- Cold Start Injector 1 Malfunction
What To Check After Fixing 28891 Code
- Inspect all the connections diesel particulate filter differential pressure too high bank 2
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns