VW Code 12551
12551 Description And Summary : |
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The instrument cluster alerts the driver to the fault bank 3, o2 correction behind catalyst, b1, limit attained run rough, or might suddenly stall at any given speed databus engine-engine, implausible message and wait then oxygen (lambda) sensor b1 s2, signal shorted to heater circuit will delay your vw fault. |
12551 Possible Causes:
12551 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Shift Solenoid E Performance or Stuck Off
- Cylinder 1 Injector Circuit Low
- Engine Oil Temperature Sensor Malfunction
- Fuel Rail/System Pressure - Too High
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Composition Sensor Circuit Malfunction
What To Check After Fixing 12551 Code
- Inspect all the connections exhaust gas temperature sensor 2 bank 1 (g448), high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns