Mustang MAF saturation

[caged]

I need to get to the bottom of the driver demand limit source -MAF sensor saturation. Iv had it come up on a couple of procharged 2017 coyote mustangs and a 2016 with a roush 2300. It happens on the p1x and the bigger d1x at 117 period and comes up as "part throttle" then at 112 period it comes up as "maf sensor saturation "
Iv tried to re scale the period above so it goes down to 80. iv also tried to play around with the maf sensor settings under engine diag. Another thing iv noticed is when they hit "part throttle" the throttle and throttle desired will drop from 85% to 83% and stay that way till the end of the pull.

[caged]

Anyone?

[bbrooks98]

Anyone?

Make sure your MAF min under engine diagnostics is below your rescaled value. Set MAF limit to disable and rescale the period table like you've done should take care of it.

Post the file

[GHuggins]

I've actually got this same problem on a 14 GT500 right now... I know in the log I have some knock I need to fix, but otherwise what's kind of got me a little puzzled is I've already set the MAF up to be ignored where it's setting this issue... I've also tried lowering the min period and it's not helping... Am I possibly missing another table or just overlooked something really simple? Any help is greatly appreciated. Thank You.

[GHuggins]

OK, think I fixed it - it was the default period - had to lower it some more for some weird reason...

[bbrooks98]

OK, think I fixed it - it was the default period - had to lower it some more for some weird reason...

Default period was what i meant when i said min I just forgot what it was called. lol That should do it.

[caged]

Ill double check on another car iv got here. Cheers

[GHuggins]

Yeah, mine was already under what the MAF was ever seeing - I even considered rescaling the voltage scale as an attempt to fix it, but wound up going a little further with the MAF periods scale - which still didn't fix it and then put the default period 3 or 4 beyond the MAF period scale and even set my MAF test rpm to 5000, which all finally fixed it 100%... Car wound up putting down 690 with the 2.4blower pulley and C&L cai - only other mod on the car was a catback - I think that's OK for one of these...

Bbrooks98 - honestly wouldn't have known where to continue looking without your hint - Thank You... If it weren't for this little hiccup, I could have been done with it this morning

[GrannySShifting]

What is the MAF test RPM doing