I've finished sd tuning the VE table-all ltft -3 to 0. Now i'm trying to do a maf calibration and i must be doing something wrong.When i log data the maf grams/ sec exactly match my existing maf calibration table.I dont think this can be since i have a jantzer tb and slp 85 mm mas. I log MAF-airflow from mas and maf frenquency.Should i log dyncylair-air flow grams/cyl-speed density and if i do how do i convert grams/cyl to grams per sec????

 

www.onlineconversion.com or just right click on the table in HPT scanner and pick imperial/metric.

are you using http://allmod.net/hpt ?

 

I'm using EFI Flashscan and if im supposed to log Dyncylair i dont know how to convert grams per cylinder to grams per sec/// mutiply by 8 cylinders or what???? help me.The grams per cyl are like 0.13 or 0.15 and i need grems per sec like 2.3203.

 

List your available PID's and you'll see one of the DYNAIR's that has units in grams/sec. I can't remember the exact PID name (at work right now), but it's there. Sort the fields by units by clicking the bar at the top of the list. That should make it easier to find.

Also, you need to make sure you are in SD when calibrating your MAF. My experience has shown it's easier to do with fuel trims. If you want to go that route, you don't need to be in SD. Just log STFT's vs. MAF Freq. and adjust accordingly based on the percentage +/-.

 

Thanks SSpddmon i'll look and see if i can find that pid. Got it Dynair--calculated air flow.Is this correct?

 

Yup...that's it.

 

Do a search on the EFIlive forum there is a map u can download to autotune the MAF.
Works like a charm not at work now so cant give u the link