BMW DTC P1264 – Mass or Volume Air Flow Too High at Full Load (Bank 2)
DTC P1264 meaning on BMW
DTC P1264 on a BMW indicates that the Mass or Volume Air Flow is too high at full load on Bank 2. This means that the engine control module (ECM) has detected that the amount of air entering the engine is higher than expected under full load conditions on the second bank of cylinders.
BMW DTC P1264 symptoms
Symptoms of DTC P1264 on a BMW may include:
- Check Engine Light illuminated
- Reduced engine power
- Poor acceleration
- Engine stalling or hesitation
BMW DTC P1264 causes
The possible causes of DTC P1264 on a BMW include:
- Dirty or faulty mass air flow sensor
- Intake air leaks
- Faulty oxygen sensor
- Issues with the fuel system
- Incorrect air-fuel mixture
BMW DTC P1264 seriousness
DTC P1264 should not be ignored as it can lead to poor engine performance and reduced fuel efficiency. Continuing to drive with this fault may cause further damage to engine components over time.
How to diagnose DTC P1264 on BMW
To diagnose DTC P1264 on a BMW, you can perform the following steps:
- Use a diagnostic scanner to retrieve the fault codes
- Inspect the mass air flow sensor for dirt or damage
- Check for any intake air leaks
- Test the oxygen sensor functionality
- Inspect the fuel system for any issues
How to fix DTC P1264 on BMW
To fix DTC P1264 on a BMW, you can try the following solutions:
- Clean or replace the mass air flow sensor
- Repair any intake air leaks
- Replace the faulty oxygen sensor
- Address any fuel system problems
- Ensure the correct air-fuel mixture
How to erase DTC P1264 on BMW
To erase DTC P1264 on a BMW, you can use a diagnostic scanner to clear the fault codes stored in the ECM. Once the issue has been fixed and the fault codes cleared, the Check Engine Light should turn off.