MicroSquirt.com read only forum (Jan.15,2018)

I’m trying to figure out the microsquirt connections for the GM Delphi AF10043. I have read that it has a frequency output so must be connected to pin 5 on the Ampseal. And the switched 12v and ground are straight forward. But what is the low reference pin on the MAF plug, is this 5v which would be pin 28?
A=Low Ref Pin 28???
B=IAT signal Pin 26
C=Ground Pin 20
D=Ignition Feed
E=MAF Pin 5

http://i264.photobucket.com/albums/ii18 ... innout.jpg

Are my assumptions right?
Regards Steven

Steven,

(EDIT) I think the manuals have had a tweak, they appear to be much improved (clarity & presentation)

I had no idea what the "low reference" refers to, and it kept cropping up in GM MAF pinouts, so I googled it, and got this link....
http://easyautodiagnostics.com/gm/3.5L/ ... or-tests-1
so it appears to be an intake air temperature ground!
Maybe the sensor ground pin, #20, would be more appropriate

Mike
PS Thinking about it, it already has a 12V feed, so the rest of the connections are just sensor outputs, it wouldn't ever need 5V or a Vref.