I am logging 2byte airflow so I can see where the MAF is at past the 1byte limit. The signal pegs out at 3400 hz, it's not a logging limit like 1593 because the signal bounces around that limit (3400 being the absolute max I see). Fuel addition stops when I reach this point, I have tuned pretty far into the dark beyond it but I'm at the point where I simply need a higher ceiling.

Before I go further let me disclose that I have to run a MAF, don't concern yourself with why as it's unimportant. I have to run a MAF and I'm currently running a modified 482 MAF.

So my question is has anyone read a higher signal from the 399? I'm redoing my setup this winter to make the absolute most of the air I can get, I've already modded the current MAF to flow more air for a given signal. All I'm trying to figure out is if the chip in the 399 can produce a higher signal.

 

You can always tune speed density, but leave the MAF in place...

 

This is on a v6 3g, no tephra over here. Believe me, if I could run SD I would have long ago.

 

add a resistor