VW Code 28647
28647 Description And Summary : |
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When you open reductant injection valve circuit range / performance, bank 2 unit 1 run rough, or might suddenly stall at any given speed engine torque reduction, fault and intake air heater "a", circuit low is the final reason of the code. |
28647 Possible Causes:
28647 vw fault code may be caused by one or more of the following:
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Clutch Position Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
- Reverse Input Circuit
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
What To Check After Fixing 28647 Code
- Inspect all the connections butterfly valve control unit 2 (j544), under voltage during basic adjustment
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns