Slight hesitation under light throttle

[mhill53]

My R has developed a hesitation under light throttle? Changed the usual, plugs, leads, cap , arm etc but it's still there??
Have tried 3 mapped ecu's and it is still evident?? Running a mbc with bcs still plugged in. Have considered a new MAF but wondered if anyone had experienced the same hesitation?

[LeeT5]

My R has developed a hesitation under light throttle? Changed the usual, plugs, leads, cap , arm etc but it's still there??
Have tried 3 mapped ecu's and it is still evident?? Running a mbc with bcs still plugged in. Have considered a new MAF but wondered if anyone had experienced the same hesitation?

Clean it first using CARB cleaner, then rinse with Contact cleaner! If the hesitation disappears, then you can post me a beer as I've diagnosed your cars fault. You'll then need to go buy a new MAF (if it's still the original one, or just clean it if it's relatively new). Don't forget to clear the fault codes :wink:

Are you running a stock air filter or Aftermarket oiled type?

[mhill53]

I had given the MAF a clean but still the same?? I'm running a foam cone filter.