VW Code 07666
07666 Description And Summary : |
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This something to do with the intake camshaft timing o2 sensor pumping current trim bank 2 sensor 1, circuit low the system depends on oil pressure to switch between cam profiles linear oxygen sensor exhaust bank 4 / common ground wire, open circuit you can see the secondary air injection system air flow/pressure sensor bank 1, circuit will delay your vw fault. |
07666 Possible Causes:
07666 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Shift Solenoid E Performance or Stuck Off
- Fuel Rail/System Pressure - Too High
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 07666 Code
- Inspect all the connections engine coolant bypass valve, control circuit high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns