BMW DTC P2191 – Fuel Control System ‘A’ Too Lean at Higher Load (Bank 1)
DTC P2191 meaning on BMW
DTC P2191 on a BMW indicates that the fuel control system ‘A’ is too lean at higher load conditions on Bank 1. This means that the engine is not receiving enough fuel to maintain the proper air-fuel ratio during high load situations.
BMW DTC P2191 symptoms
Symptoms of DTC P2191 on a BMW may include:
- Check Engine Light illuminated
- Decreased engine performance
- Engine misfires
- Rough idling
- Reduced fuel efficiency
BMW DTC P2191 causes
Common causes of DTC P2191 on a BMW include:
- Vacuum leaks
- Faulty oxygen sensor
- Dirty or clogged fuel injectors
- Fuel pump issues
- Intake air leaks
BMW DTC P2191 seriousness
DTC P2191 should not be ignored as it can lead to potential engine damage if left unresolved. Running the engine too lean can cause overheating, misfires, and other serious issues that may result in costly repairs.
How to diagnose DTC P2191 on BMW
To diagnose DTC P2191 on a BMW, you can:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect for vacuum leaks
- Check the oxygen sensor readings
- Clean or replace fuel injectors
- Test the fuel pump pressure
How to fix DTC P2191 on BMW
To fix DTC P2191 on a BMW, you may need to:
- Repair any vacuum leaks
- Replace the faulty oxygen sensor
- Clean or replace clogged fuel injectors
- Address any fuel pump issues
- Fix any intake air leaks
How to erase DTC P2191 on BMW
To erase DTC P2191 on a BMW, you can:
- Use a diagnostic scanner to clear the fault codes
- After fixing the underlying issue, drive the vehicle to allow the system to relearn
- Ensure that the Check Engine Light does not reappear