Been noticing a little hesitation in some rev ranges so decided to put the code reader on the car.
Had 3 codes stored.
System too Lean Bank 1
System too Lean Bank 2
And there was also a code which I did not read fully which mentioned O2 sensor. However that code has cleared itself.
Now I have done a little research and it may point to the MAF sensor, so I will clean this very carefully with some electrical contact cleaner. The MAF looks very similar to that on a BMW E46 M3 which I used to own, I cleaned the MAF in the M3 with contact cleaner and the difference made to the throttle response was quite noticeable.
Other research points to a possible vacuum leak, so I will check all pipes and connections.
However, I feel there maybe a problem with the ECU giving enough fuel if the O2 sensor/s are not working as they should.
What are your thoughts?
Had 3 codes stored.
System too Lean Bank 1
System too Lean Bank 2
And there was also a code which I did not read fully which mentioned O2 sensor. However that code has cleared itself.
Now I have done a little research and it may point to the MAF sensor, so I will clean this very carefully with some electrical contact cleaner. The MAF looks very similar to that on a BMW E46 M3 which I used to own, I cleaned the MAF in the M3 with contact cleaner and the difference made to the throttle response was quite noticeable.
Other research points to a possible vacuum leak, so I will check all pipes and connections.
However, I feel there maybe a problem with the ECU giving enough fuel if the O2 sensor/s are not working as they should.
What are your thoughts?