Quote Originally Posted by mecanicus View Post
I do not have a complete wiring diagram of such a car, but normaly ecm is controlled by minus signal (earth, ground). If the A/C pressure switch will ground that wire, you may do that manualy (by a switch) thus rpm could rise up these rpm`s you need even when engine is idling. Somebody mentioned this earlier in that thread.
"AHWZ",is that your memcal? what is XUZA?

Thank you! I'll do some more research on the AC Signal, I don't want to guess and fry my ecm. ;-)


AHWZ=
20190217_114932.jpg


XUZA is the name of the rig. :-)