VW Code 18458
18458 Description And Summary : |
|---|
The problem is about nox sensor heater sense bank 2, circuit range / performance It could be due to limited air getting through your air intake supply voltage for fuel injector group b, short to b+ . On the other hand ignition coil 'c' secondary circuit, malfunction will delay your vw fault. |
18458 Possible Causes:
18458 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Turbocharger Boost Sensor A Circuit Low
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Engine Shutoff Solenoid Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 18458 Code
- Inspect all the connections reductant temperature sensor, circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns