so ive been driving around with a voltmeter on the afm all week on my gsl-se and heres what i've found. the gsl-se uses a flapper door afm, like the s4 fc. the gsl-se is a 12v system, and the voltage goes up as the door opens. idle voltage is about 5.06v and wot voltage is about 8.80v. i notice that you can get full voltage at about 4000-4500rpms.

while i was in there i plugged in an fc afm, and it wont work for 2 reasons.
the first is that the voltage goes down as the door opens. the other thing is that the fc is a 0-5v sensor so the voltages are off.

thru some experimantation, i was able to raise the wot voltage from 8.66 to 8.88, and its fixed my high rpm fuel starvation problem, the afm spring is adjustable for tension

mike

 

Take a look at this page, by Jim Rothe...he goes into fairly excruciating detail on why the two AFMs aren't going to be swappable without major surgery.

 

yeah, i looked at that and then checked it on the car with the voltmeter, wont work

mike

 

Aftermarket engine management systems eliminate the need for the afm! Yay!

(haltech etc)

Only thing is they prolly cost more than the car did in the 1st place!

 

no way! the gsl-se would sticker for 27,500 today

mike

 

Yen maybe...

 

hahaha

Well i know that I wouldnt sell mine for anything less, but i know i probably wouldnt get it.

 

no if you adjust the sticker for inflation it gets to be expensive

mike