MAF and predetermined values

[dr_jekyll]

It totally depends how the calibration has been done in the remap.

I can only tell you what would happen on a stock file as it depends on software version and how mrwBRA_KF (MAF Limitation or "Smoke Map") has been calibrated. There's so many different ways of calibrating the MAF limitation map that it's difficult to say definitively yes or no - also no reason to say that arwLMVGWKF (default airmass map above) hasn't been re-calibrated to account for a larger turbocharger and higher MAF values when the MAF sensor is in fault.

In this particular scenario - if your software version uses the values that I've shown above - theoretically with a new MAF sensor, the value used in mrwBRA_KF would be higher - whether that allows more fuel is difficult to say because that depends how the limitation map is calibrated. This won't give any "more efficient atomisation" which will improve power remotely noticeably - this is all down to limitation of the injection quantity (and therefore smoke...) depending on how much air is passing through the MAF sensor. With the MAF unplugged, there's corrections made by the ECU which will improve economy (MAF sensor also has a inlet temperature sensor...) which is also used to make small corrections to timing and quantity here and there which certainly help economy/emissions.

There shouldn't be a situation where your car goes better with the MAF sensor unplugged - if it does, that's 99% likely because the MAF sensor is broken and you need a new one.

Cheers for that and taking the time to explaine that fella. Managed to get my head around that. Deffo sounds like im needing a new maf going by that information then as she goes like a rocket unplugged

Sent from my SM-G920F using Tapatalk