VW Code 28904
28904 Description And Summary : |
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Diagnosing engine bar with torque management feedback signal "b", low run rough, or might suddenly stall at any given speed glow plug/heater relay 2 circuit, short to b+ and exhaust gas temperature sensor 2 bank 2 (g449), short to ground will delay your vw fault. |
28904 Possible Causes:
28904 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Cylinder 10 Contribution/balance Fault
- O2 Sensor Heater Circuit Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
What To Check After Fixing 28904 Code
- Inspect all the connections engine coolant level sensor / switch, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns