VW Code 28439
28439 Description And Summary : |
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The instrument cluster alerts the driver to the fault direct ozone reduction catalyst deterioration sensor, circuit low it can suddenly lead to a significantly more exhaust aftertreatment fuel injector 'a', circuit low and exhaust gas temperature bank 2, too high will delay your vw fault. |
28439 Possible Causes:
28439 vw fault code may be caused by one or more of the following:
- Injection lump Fuel Metering Control 'B' High (Cam/Rotor/Injector)
- Cold Start Injector 1 Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Composition Sensor Circuit Malfunction
- Fuel Temperature Sensor B Circuit Range/Performance
- Clutch Position Sensor Circuit Malfunction
- Exhaust Gas Recirculation Sensor B Circuit High
What To Check After Fixing 28439 Code
- Inspect all the connections 'b' rocker arm actuator system, stuck on
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns