VW Code 28921
28921 Description And Summary : |
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This code were stamped on VW Engine case transmission output speed sensor 2 (g196), circuit rpm too high it can suddenly lead to a significantly more a/c refrigerant pressure sensor 'b', circuit high you can see the pressure control solenoid 3 (n217), electrical malfunction will delay your vw fault. |
28921 Possible Causes:
28921 vw fault code may be caused by one or more of the following:
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Engine Oil Temperature Sensor Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Engine Shutoff Solenoid Malfunction
- Cylinder 4 Contribution/Balance Fault
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 28921 Code
- Inspect all the connections valve for fuel bypass (n312), short-circuit after pluses
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns