Originally posted by Tired2

Originally posted by RfOeCnKdOeNr

Originally posted by Tired2 It sounds like you would be best off just finding the stock FILDE valve off another 420A. Not sure what your budget is like, but I'm sure it won't break the bank too badly. Mine had Stepper IAC, so I assumed they all did. That always confused me, turns out they just have one or the other. Maybe someone else can chime in?

Seems like it.... Also sounds like it can only be an open/close valve and not PWM or am I reading that wrong? Anyone else running with the FIDLE instead of IAC stepper??

The 'official' FIDLE pin on MS2 is PWM capable, so it will do either type. I did not find this for the longest time, but when I finally did it was helpful: http://www.msextra.com/doc/ms2extra/MS2-Extra_Hardware.htm#ms2options

Just an update... I am going to enable the stepper motor IAC on my ECU. I looked into the FIDLE option and I just didn't like it. Here is the email from Symtech when I asked if the MSExtra instructions for doing the IAC stepper setup on my own were correct:

"Your MegaSquirt ECU uses a v3.0 board. You will find the only jumpers you actually need to install are JS1 to IAC1B and JS3 to IAC2B (the rest are already installed). Again, you will lose the tachometer and general purpose output functions by doing this, though."

Sounds simple enough?! I am going to try it next weekend when I go to parents house.

I will keep you guys posted!