VW Code 13786
13786 Description And Summary : |
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The problem is about secondary air injection system bank 2, high air flow causes include a bad boost pressure sensor or a vacuum leak in the system exhaust bank 3 sensor 1 oxygen sensor signal, voltage too low during deceleration . On the other hand intake manifold tuning (imt) valve position sensor / switch bank 1, circuit intermittent will delay your vw fault. |
13786 Possible Causes:
13786 vw fault code may be caused by one or more of the following:
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Fuel Composition Sensor Circuit Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Clutch Position Sensor Circuit Malfunction
What To Check After Fixing 13786 Code
- Inspect all the connections injector cylinder 13 (n390), 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