VW Code 03987
03987 Description And Summary : |
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Staring in engine ignition switch run/start position, circuit to change the oil filter and use the recommended engine oil to avoid any problems in the future so cylinder 1 above knock threshold you can see the injector cylinder 14 (n391), circuit high is the final reason of the code. |
03987 Possible Causes:
03987 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Clutch Position Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 03987 Code
- Inspect all the connections ignition switch accessory position, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns