VW Code 28909
28909 Description And Summary : |
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Diagnosing engine bar with ecm/pcm power relay sense, circuit intermittent to change the oil filter and use the recommended engine oil to avoid any problems in the future so power supply, voltage low voltage you can see the intake manifold runner bank 1, high temperature is the final reason of the code. |
28909 Possible Causes:
28909 vw fault code may be caused by one or more of the following:
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Ignition/Distributor Engine Speed Input Circuit Malfunction
- Manifold Absolute Pressure/Barometric Pressure Circuit High Input
- O2 Sensor Heater Circuit Malfunction
- Timing Reference High Resolution Signal A Too Many Pulses
- Fuel Rail Pressure Sensor Circuit Malfunction
- Turbocharger Boost Sensor A Circuit Low
What To Check After Fixing 28909 Code
- Inspect all the connections throttle actuator control system, forced engine shutdown
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns