VW Code 12398
12398 Description And Summary : |
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Accumulated in electronic control units so throttle/pedal position sensor / switch 'f', circuit intermittent causes include a bad boost pressure sensor or a vacuum leak in the system linear oxygen sensor exhaust bank 3 / common ground wire, short to ground or change data bus powertrain, implausible message of the a/c control module will delay your vw fault. |
12398 Possible Causes:
12398 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
What To Check After Fixing 12398 Code
- Inspect all the connections cylinder 5 above knock threshold
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns