B1904 Audi Fault Code
If you want to know how to repair B1904 OBD 2 code, it is necessary to find out what type of fault it is. The reason for this is that each type of fault needs different repair steps.
Meaning of Audi B1904 OBD/2 ErrorB1904 Code Check :
B1904 OBD 2 code troubleshooting is a process of resolving the problem with the car engine by inspecting the error codes and checking for any specific issues.
| B | Body (B) Code |
| 1 | Fuel Rail/System Pressure - Too High |
| 9 | Exhaust Gas Recirculation System Valve 1 |
| 0 | Transmission Control Module Reprogrammable Memory |
| 4 | Service Push Button Circuit Failed High |
Common B1904 Error :
Because many things can trigger the error, finding the root cause can be tricky. This often makes repairing code B1904 a long and arduous task. Other times, more than one problem can trigger this code.
It's advisable to leave this one to the professionals. In most cases, fixing code B1904 does not cost a lot to repair. Once the code B1904 is repaired, your car will run better, have more power, and get better fuel mileage.