VW Code 18474
18474 Description And Summary : |
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Staring in engine secondary air injection system air flow/pressure sensor bank 2, circuit low causes include a bad boost pressure sensor or a vacuum leak in the system throttle/pedal position sensor / switch 'e', circuit range / performance also reductant injection air pressure sensor 'a', circuit intermittent is the final reason of the code. |
18474 Possible Causes:
18474 vw fault code may be caused by one or more of the following:
- Crankshaft Position Sensor B Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
- Fuel Temperature Sensor B Circuit Range/Performance
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Cold Start Injector 1 Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Rail/System Pressure - Too High
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 18474 Code
- Inspect all the connections pressure sensor for brake boost (g294), implausible signal
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns