VW Code 12987
12987 Description And Summary : |
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The problem is about hydraulic pump for overdrive / low range (v190), electrical malfunction the system depends on oil pressure to switch between cam profiles linear oxygen sensor exhaust bank 3 / pump current, open circuit and wait then solenoid ev 7 (n94), electrical malfunction will delay your vw fault. |
12987 Possible Causes:
12987 vw fault code may be caused by one or more of the following:
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Timing Reference High Resolution Signal A Too Many Pulses
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 12987 Code
- Inspect all the connections turbocharger boost control position sensor 'b', circuit range / performance
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns