VW Code 28877
28877 Description And Summary : |
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Accumulated in electronic control units so coolant circulation pump relay (j151), short to b+ it can suddenly lead to a significantly more reductant injection air pump control, circuit high you can see the linear oxygen sensor exhaust bank 3 / pump current, short to ground is the final reason of the code. |
28877 Possible Causes:
28877 vw fault code may be caused by one or more of the following:
- Cylinder 1 Injector Circuit Low
- Crankshaft Position Sensor B Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Engine Oil Temperature Sensor Malfunction
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 28877 Code
- Inspect all the connections secondary air injection pump-d-relay (j705), circuit electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns