MightyAl;1800209 said:
Please shoot me a pm on how you did this or share with everyone. I have a few ideas in my head but working the IACV out has kept me from pulling the trigger. Any info would be great.
mkiiichip;1800262 said:
You have got to be kidding..... I have been researching for days on how to control these stepper motors. Do share, sir.
I had no idea there was so much MS action here. The few threads that are here about MS, are not very active.
Man you guys are lucky I'm willing to share all my hard work!!!
I got it to work great, just use my rough setting from the previous pics I posted on the last page in tunerstudio.
Basically, the Stock IACV is a unipolar stepper motor, and the MS can not control that, and really, it is very simple to make it work like a bipolar stepper motor that the MS CAN control! I took the time to draw a before and after diagram for all of you, and what wires go where if you don't want to figure that out yourself
and here are some rough setting to get it to work halfway decent, in case you missed it on the last page
I HIGHLY recommend keeping a log of the wiring you do when you build and what you wire to!!!! Otherwise, you will be totally screwed if something goes wrong, and you don't remember what goes where. Plus, you can share your findings with others like I am doing!
Here is a few pages of the log I kept, mainly I just documented what extra circuits I added, and I drew a circuit of the boost control circuit inside the MS case as well.
This last picture may have the coil packs in the wrong firing order, I dont remember if I corrected it or not. You can figure it out!
I hear people talk bad about megasquirt all the time, and to all those people, you are either too stupid to do some research and figure things out for yourself, or you are just afraid of it.
If you know how to solder (and hopefully are good at it), and can follow directions and do research, then you can most likely figure it out. If you have to ask questions every single step of the way, and know 0 about electronics and wiring, then don't waste your time or mine.
I have heard so many people say that MS will never idle like factory, that they never run right, nothing ever works. Well, you must have some sort of handicap
Here is my first startup video people.... Horrible right?
http://www.youtube.com/watch?v=DUl54Zvel_4
And after a making a quick VE map on the dyno, and taking some quick educated guesses on timing(only because of time constraints) I just took it to the track for a shakedown run, just launching it easy, no 2 step. and I think it ended up pretty good for a shakedown. Had a lil hiccup in 4th gear, but other than that it was smooth sailing. I still have a lot of tuning left to do this year.
http://youtu.be/VpdDZn_PQJ0
