VW Code 28681
28681 Description And Summary : |
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Staring in engine ignition coil 'b' secondary circuit, malfunction the system depends on oil pressure to switch between cam profiles exhaust bank 4, sensor 1, signal too slowly also reductant injection air pump control, circuit / open will delay your vw fault. |
28681 Possible Causes:
28681 vw fault code may be caused by one or more of the following:
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Shift Solenoid E Performance or Stuck Off
- Fuel Temperature Sensor B Circuit Range/Performance
- Ignition Coil A Primary/Secondary Circuit Malfunction
What To Check After Fixing 28681 Code
- Inspect all the connections secondary air injection system switching valve bank 1, stuck open
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns