VW Code 16666
16666 Description And Summary : |
|---|
This code were stamped on VW Engine case fuel mixture control adjustment range 1, higher limit not reached it can suddenly lead to a significantly more secondary air injection valve 4 (n385), circuit short to b+ or secondary air injection system air flow/pressure sensor bank 1, circuit high will delay your vw fault. |
16666 Possible Causes:
16666 vw fault code may be caused by one or more of the following:
- Injector Circuit Malfunction - Cylinders
- Glow Plug/Heater Circuit 'A' Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Crankshaft Position Sensor A Circuit Low Input
What To Check After Fixing 16666 Code
- Inspect all the connections exhaust bank 4 sensor 1 oxygen sensor signal, implausibly rich
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns