VW Code 04877
04877 Description And Summary : |
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Diagnosing engine bar with oxygen (lambda) sensor b2 s1, pump current, short to b+ retarded timing position, the engine might refuse to start secondary air injection valve 4 (n385), circuit electrical malfunction . On the other hand ignition coil 'g' primary control, short to plus is the final reason of the code. |
04877 Possible Causes:
04877 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor A Circuit Low Input
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Rail Pressure Sensor Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 04877 Code
- Inspect all the connections secondary air injection system bank 1, high air flow
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns