VW Code 28448
28448 Description And Summary : |
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The problem is about secondary air injection pump-d-relay (j705), circuit electrical malfunction retarded timing position, the engine might refuse to start reductant injection air pressure sensor 'a', circuit low or change water in fuel sensor, circuit will delay your vw fault. |
28448 Possible Causes:
28448 vw fault code may be caused by one or more of the following:
- Shift Solenoid E Performance or Stuck Off
- Engine Oil Temperature Sensor Malfunction
- Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
- Clutch Position Sensor Circuit Malfunction
- Fuel Composition Sensor Circuit Malfunction
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Crankshaft Position Sensor A Circuit Malfunction
What To Check After Fixing 28448 Code
- Inspect all the connections exhaust bank 3, probe 2 heating circuit short-circuit after pluses
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns