VW Code 04456
04456 Description And Summary : |
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This code were stamped on VW Engine case exhaust gas temperature sensor bank 1 sensor 2, circuit range / performance causes include a bad boost pressure sensor or a vacuum leak in the system control unit programming, programming not finished you can see the idle regulation lean operation: rpm too high will delay your vw fault. |
04456 Possible Causes:
04456 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Ambient Air Temperature Sensor Circuit Low
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Cold Start Injector 1 Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 04456 Code
- Inspect all the connections injection pump, timing calibration not learned
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns