VW Code 16986
16986 Description And Summary : |
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Diameter in engine o2 sensor pumping current trim bank 1 sensor 1, circuit / open it can suddenly lead to a significantly more exhaust bank 3 sensor 1 oxygen sensor signal, voltage too low during deceleration and relay for exhaust cooling agent (n313), short to ground is the final reason of the code. |
16986 Possible Causes:
16986 vw fault code may be caused by one or more of the following:
- Clutch Position Sensor Circuit Malfunction
- Cylinder 4 Contribution/Balance Fault
- Cold Start Injector 1 Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- Fuel Rail/System Pressure - Too High
What To Check After Fixing 16986 Code
- Inspect all the connections vehicle speed sensor 'b'
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns