VW Code 18258
18258 Description And Summary : |
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The problem is about secondary air injection system control 'b', circuit high It could be due to limited air getting through your air intake fuel injection valve 2 (n367), short to b+ . On the other hand valve for pump - jet: cylinder 10 (n306), range / performance is the final reason of the code. |
18258 Possible Causes:
18258 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Engine Oil Temperature Sensor Malfunction
- Cold Start Injector 1 Malfunction
- Crankshaft Position Sensor B Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
What To Check After Fixing 18258 Code
- Inspect all the connections pre-catalyst exhaust bank 4 effect too small
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns