VW Code 28286
28286 Description And Summary : |
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The problem is about exhaust bank 4 main catalyst, effectiveness too low It could be due to limited air getting through your air intake valve for pump - jet, cylinder 3 (n242), electrical malfunction you can see the vehicle speed signal wheel speed from brake control module; range / performance will delay your vw fault. |
28286 Possible Causes:
28286 vw fault code may be caused by one or more of the following:
- Fuel Rail/System Pressure - Too High
- Timing Reference High Resolution Signal A Too Many Pulses
- Injector Circuit Malfunction - Cylinders
- Clutch Position Sensor Circuit Malfunction
- Ignition Coil A Primary/Secondary Circuit Malfunction
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Cylinder 10 Contribution/balance Fault
What To Check After Fixing 28286 Code
- Inspect all the connections idle regulation lean operation: rpm too high
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns