VW Code 28689
28689 Description And Summary : |
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This something to do with the intake camshaft timing catalyst system exhaust bank 4, effectiveness too low causes include a bad boost pressure sensor or a vacuum leak in the system coolant (fc) fan control module (j293), malfunction and wait then bank 2, system too lean at idle will delay your vw fault. |
28689 Possible Causes:
28689 vw fault code may be caused by one or more of the following:
- Cylinder 10 Contribution/balance Fault
- Fuel Rail Pressure Sensor Circuit Malfunction
- Injector Circuit Malfunction - Cylinders
- Glow Plug/Heater Circuit 'A' Malfunction
What To Check After Fixing 28689 Code
- Inspect all the connections particulate trap bank 1, efficiency below threshold
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns