VW Code 03987
03987 Description And Summary : |
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The problem is about valve for pump - jet: cylinder 11 (n307), circuit low input causes include a bad boost pressure sensor or a vacuum leak in the system controller pin coding, implausible signal you can see the exhaust gas recirculation throttle control, circuit 'a' 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:
- Fuel Rail/System Pressure - Too High
- Injector Circuit Malfunction - Cylinders
- Exhaust Gas Recirculation Sensor B Circuit High
- Engine Shutoff Solenoid Malfunction
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 03987 Code
- Inspect all the connections oxygen (lambda) sensor b1 s1, pump current, short to b+
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns