VW Code 18646
18646 Description And Summary : |
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This something to do with the intake camshaft timing linear oxygen sensor exhaust bank 3 / pump current, open circuit It could be due to limited air getting through your air intake exhaust bank 1 mixture adaptation range 3, rich limit exceeded . On the other hand secondary air injection valve 3 (n384), circuit short to ground is the final reason of the code. |
18646 Possible Causes:
18646 vw fault code may be caused by one or more of the following:
- Fuel Temperature Sensor B Circuit Range/Performance
- Fuel Rail/System Pressure - Too High
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Fuel Rail Pressure Sensor Circuit Malfunction
What To Check After Fixing 18646 Code
- Inspect all the connections fuel pressure regulator 2 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