VW Code 12684
12684 Description And Summary : |
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Staring in engine intake manifold runner control, upper stop not reached it can suddenly lead to a significantly more nox sensor bank 2, circuit high or change torque management request input signal a, low is the final reason of the code. |
12684 Possible Causes:
12684 vw fault code may be caused by one or more of the following:
- Cold Start Injector 1 Malfunction
- Engine Shutoff Solenoid Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- Engine Oil Temperature Sensor Malfunction
What To Check After Fixing 12684 Code
- Inspect all the connections a/c request b, circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns