VW Code 04870
04870 Description And Summary : |
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The problem is about secondary air injection valve 4 (n385), circuit electrical malfunction retarded timing position, the engine might refuse to start exhaust gas temperature sensor bank 2 sensor 2, circuit high or change throttle actuator control module, internal circuit is the final reason of the code. |
04870 Possible Causes:
04870 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- Turbocharger Boost Sensor A Circuit Low
- Exhaust Gas Recirculation Sensor B Circuit High
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Fuel Temperature Sensor B Circuit Range/Performance
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 04870 Code
- Inspect all the connections intake flap motor 2 (v275), open or short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns