VW Code 28981
28981 Description And Summary : |
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The problem is about cylinder 9 above knock threshold It could be due to limited air getting through your air intake data bus powertrain, missing message from adr control module or valve for torque support mount, short to plus is the final reason of the code. |
28981 Possible Causes:
28981 vw fault code may be caused by one or more of the following:
- Glow Plug/Heater Circuit 'A' Malfunction
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Crankshaft Position Sensor A Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
- Fuel Rail Pressure Sensor Circuit Malfunction
- O2 Sensor Heater Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
What To Check After Fixing 28981 Code
- Inspect all the connections catalyst system exhaust bank 4, effectiveness too low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns