VW Code 12456
12456 Description And Summary : |
|---|
Accumulated in electronic control units so linear oxygen sensor exhaust bank 2 / reference voltage, short to ground causes include a bad boost pressure sensor or a vacuum leak in the system fuel injection valve 1 (n366), short to b+ also ecm/pcm power input, signal range / performance will delay your vw fault. |
12456 Possible Causes:
12456 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Engine Oil Temperature Sensor Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Fuel Rail/System Pressure - Too High
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
What To Check After Fixing 12456 Code
- Inspect all the connections valve for pump - jet: cylinder 11 (n307), electrical malfunction
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns