B1991 Audi Fault Code
If you want to know how to repair B1991 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 B1991 OBD/2 ErrorB1991 Code Check :
B1991 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 |
| 9 | A/C System High Pressure High Temperature |
| 1 | Water Pump Mechanical Defect Detected |
Common B1991 Error :
Because many things can trigger the error, finding the root cause can be tricky. This often makes repairing code B1991 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 B1991 does not cost a lot to repair. Once the code B1991 is repaired, your car will run better, have more power, and get better fuel mileage.