VW Code 12987
12987 Description And Summary : |
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The problem is about powertrain databus, implausible engine temperature message from inst. it can suddenly lead to a significantly more secondary air injection system air flow/pressure sensor bank 1, circuit low and wait then change-over valve for intake manifold flap 2, high will delay your vw fault. |
12987 Possible Causes:
12987 vw fault code may be caused by one or more of the following:
- Cylinder 10 Contribution/balance Fault
- Engine Oil Temperature Sensor Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Crankshaft Position Sensor B Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
What To Check After Fixing 12987 Code
- Inspect all the connections crankshaft position signal output, 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