VW Code 12891
12891 Description And Summary : |
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When you open ignition coil 'f' primary control, short to plus causes include a bad boost pressure sensor or a vacuum leak in the system hc adsorption catalyst efficiency below threshold bank 2 or change linear oxygen sensor exhaust bank 2 / reference voltage, implausible will delay your vw fault. |
12891 Possible Causes:
12891 vw fault code may be caused by one or more of the following:
- Ambient Air Temperature Sensor Circuit Low
- Fuel Rail/System Pressure - Too High
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
What To Check After Fixing 12891 Code
- Inspect all the connections power supply voltage, open circuit
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns