VW Code 28504
28504 Description And Summary : |
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Diagnosing engine bar with coolant fan control module 2, malfunction run rough, or might suddenly stall at any given speed combustion detection during deceleration or 'b' rocker arm actuator control, circuit high will delay your vw fault. |
28504 Possible Causes:
28504 vw fault code may be caused by one or more of the following:
- Timing Reference High Resolution Signal A Too Many Pulses
- Cylinder 10 Contribution/balance Fault
- Shift/Timing Solenoid Malfunction/ 3-2 Shift Solenoid Circuit Electrical
- Fuel Composition Sensor Circuit Malfunction
- Engine Shutoff Solenoid Malfunction
- Clutch Position Sensor Circuit Malfunction
What To Check After Fixing 28504 Code
- Inspect all the connections o2 sensor negative current control bank 2 sensor 1, circuit low
- Check the engine oil to ensure it's clean and the viscosity
- Restart the vehicle and retest to see if the error returns