2012 6.2L mad period and voltage not reading

[Owiens]

I am trying to make a histogram to calibrate my maf using MAF period. I have it in my channels and my chart logger but both the voltage and period stay at zero. But it is giving a MAF reading and a hertz reading. Anyone know why this might be?

[mstang_man]

can you post a pic of you histogram your trying to use

[Owiens]

Screenshot (5).pngScreenshot (2).png

so what's happening is it will only log the first cell. so I checked my channels and they are all in there but the MAF period and voltage stay at zero but I am getting an airflow reading and a hertz reading and no CEL or driveability problems

[mstang_man]

Screenshot (5).pngScreenshot (2).png

so what's happening is it will only log the first cell. so I checked my channels and they are all in there but the MAF period and voltage stay at zero but I am getting an airflow reading and a hertz reading and no CEL or driveability problems

Why are you not using STFT + LTFT or Just LTFT? your vehicle has widebands from factory and only runs open loop during cold starts. I have attached Two Graphs for reference

[Owiens]

Why are you not using STFT + LTFT or Just LTFT? your vehicle has widebands from factory and only runs open loop during cold starts. I have attached Two Graphs for reference

here is a pic of my STFT+LTFT histogram, I was just trying to figure out why my MAF period wont read.
Screenshot (6).png

here you can see that i am not getting a MAF period reading or voltage.
Screenshot (7).pngScreenshot (8).png

[mstang_man]

here is a pic of my STFT+LTFT histogram, I was just trying to figure out why my MAF period wont read.
Screenshot (6).png

here you can see that i am not getting a MAF period reading or voltage.
Screenshot (7).pngScreenshot (8).png

Can you attach one of your log files preferably a long file , even if you lower the hit count 0 are you getting data?

[Owiens]

f250 stft+ltft 2.hpl

[Owiens]

f250 stft+ltft 3.hpl

[Owiens]

the first link didnt work properly, the second is good

[mstang_man]

[QUOTE=Owiens;682100]the first link didnt work properly, the second is good[/QUOTE

I have seen this issue happen a couple times, Try updating your software if haven't already. Might need to re build the channels. It a 6.2 Raptor so it should be able to read the MAF Period. What i attached is STFT B1+B2 vs MAF Airflow LBS/Min. it's no the most accurate but its a last min pinch.

[Owiens]

[QUOTE=mstang_man;682110]

the first link didnt work properly, the second is good[/QUOTE

I have seen this issue happen a couple times, Try updating your software if haven't already. Might need to re build the channels. It a 6.2 Raptor so it should be able to read the MAF Period. What i attached is STFT B1+B2 vs MAF Airflow LBS/Min. it's no the most accurate but its a last min pinch.

ok ill try those things, thanks!

[Owiens]

I havnt done anything for a while now but i decided to try this again. i did all you suggested and stil cannot get MAF period or MAF Voltage to read. anyone have any ideas?