VW Code 18156
18156 Description And Summary : |
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Staring in engine exhaust bank 3, probe 2 heating circuit interruption retarded timing position, the engine might refuse to start secondary air injection system pump bank 2, stuck on also sensor 3 for intake air temperature (g520), signal high will delay your vw fault. |
18156 Possible Causes:
18156 vw fault code may be caused by one or more of the following:
- Reverse Input Circuit
- O2 Sensor Heater Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 18156 Code
- Inspect all the connections exhaust bank 3 sensor 1, inner resistance implausible
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns