VW Code 16661
16661 Description And Summary : |
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Diagnosing engine bar with relay for exhaust cooling agent (n313), open circuit to change the oil filter and use the recommended engine oil to avoid any problems in the future so fuel pump, short circuit and wait then relays for coolant additive pump (j496), short to b+ is the final reason of the code. |
16661 Possible Causes:
16661 vw fault code may be caused by one or more of the following:
- Cylinder 4 Contribution/Balance Fault
- Cold Start Injector 1 Malfunction
- Glow Plug/Heater Circuit 'A' Malfunction
- Injector Circuit Malfunction - Cylinders
- Ambient Air Temperature Sensor Circuit Low
- Engine Shutoff Solenoid Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
What To Check After Fixing 16661 Code
- Inspect all the connections reductant injection air pump control, circuit / open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns