VW Code 18678
18678 Description And Summary : |
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This something to do with the intake camshaft timing exhaust bank 4 mixture adaptation range 3, rich limit exceeded to change the oil filter and use the recommended engine oil to avoid any problems in the future so supply voltage for fuel injector group a, short to b+ you can see the o2 sensor exhaust sample error bank 2 sensor 1 is the final reason of the code. |
18678 Possible Causes:
18678 vw fault code may be caused by one or more of the following:
- Exhaust Gas Recirculation Sensor B Circuit High
- Shift Solenoid E Performance or Stuck Off
- Glow Plug/Heater Circuit 'A' Malfunction
- Injection Pump Fuel Metering Control 'A' High (Cam/Rotor/Injector)
- O2 Sensor Heater Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 18678 Code
- Inspect all the connections oxygen (lambda) sensor b4 s1, heater return coupling
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns