VW Code 12651
12651 Description And Summary : |
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Diagnosing engine bar with exhaust gas temperature sensor bank 1 sensor 2, circuit intermittent causes include a bad boost pressure sensor or a vacuum leak in the system accelerator pedal position sensor 1 (g79), signal too low you can see the ignition coil 'd' primary control, short to plus is the final reason of the code. |
12651 Possible Causes:
12651 vw fault code may be caused by one or more of the following:
- Fuel Composition Sensor Circuit Malfunction
- Clutch Position Sensor Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 12651 Code
- Inspect all the connections linear oxygen sensor exhaust bank 4 / common ground wire, short to ground
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns