I am going to start to re-calibrate my MAF flow tables on my MAF car.

I did a scan using a AutoXray and item #24 read 1.78V, next item was 8gr/sec. The engine was running at idle.

The MAF tables are counts vs flow rate. So how do we convert MAF voltage to counts.

I wish that the scanner gave me the MAF counts instead of the voltage because then I would know exactly where to go in the MAF tables for my changes.

 

i posted a maf flow chart a while back it has voltage vs counts.

search maf flow

 

I found your chart.

If the MAP volts that I scanned is correct, 1.78V with 8gms/sec flow, your chart is no where near my actual case.

In my MAF table 192 counts is associated with 6.2 gms/sec, and
256 counts is associated with 8.6 gms/sec.

One line of your chart is 8.sgms/sec,,,256 counts,,,,0.73V

Anyway, what is the 1.78V that I scanned today????
The car was at idle, closed loop, learned angeaged, MAF flow 8gm/sec, engine @ 1190 RPM, MAP volts 1.78V.
Now I have a MAF car, but the AutoXray header for item #24 is MAP sensor.

So whats going on.

 

im not sure but maybe the autoxray isnt accurate. did you try the moates software. ??? anyways it has the Vout=counts scales in it. thats what you asked for thats all i had. sorry DOC.