VW Code 04879
04879 Description And Summary : |
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This something to do with the intake camshaft timing exhaust pressure regulator vent solenoid, control circuit low causes include a bad boost pressure sensor or a vacuum leak in the system linear oxygen sensor exhaust bank 3 / reference voltage, implausible and wait then reductant temperature sensor, circuit range / performance will delay your vw fault. |
04879 Possible Causes:
04879 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Crankshaft Position Sensor B Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Fuel Composition Sensor Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Fuel Rail Pressure Sensor Circuit Malfunction
- Cold Start Injector 1 Malfunction
What To Check After Fixing 04879 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