Megasquirt3+MS3X

[KTM530]

Good day, I have recently purchased a DIY, MS3+MS3X standalone EMS and harness from diyautotune.com. I assembled the board and MS3 CPU, still waiting on the MS3X (back oder). I have read about guys using the stock CPS without modification. I have read about the VR input and have the MS3 wired as such. But it reads that there is only 2 wires to land and our cps has many more than that. I have also seen and read a thread a while back about cutting a noch off the cps wheel and using only one of the censors inside rather than all of them; but he did not have the MS3X. I also read about a crank wheel that is welded to the vibration dampener and another censor installed. I plan on ditching the stock multiplex and using the MS3X to drive 1zz coils and injectors directly. Do I need VR on both crank and cam to use the MS3X sequential fuel and spark? Or can i stick with the stock CPS? I am a little lost and could use a hand. So far i have not broken anything except my wallet, and would like to keep it that way.

 

[Enraged]

http://saturnwiki.net/wiki/index.php?title=Nippon_Denso_CAS

 

[KTM530]

yeah i have seen this. but is he running sequential off a MS3X card? does this mod support that? He said he is running MS2. I thought that MS2 only supported batch-fire? I obviously just know enough to be dangerous as my car sits in a non running state. Any help would be appreciated.

 

[KTM530]

http://www.msextra.com/doc/ms3/trigger-wheel.html#dualwheelcam

I have looked over this several times now, and from what i understand: I need to eliminate one CPS VR pickup off the single toothed wheel and wire it in like this; Using both cards. please chime in if i am incorrect.

 

[hvyman]

If you use the 2 wheels on the cam sensor seperate the pick ups and use the one with more teeth for crank and the single tooth one for cam.

With jz even with 2 cam sensors and a crank sensor you only use one cam sensor and can have full seq fuel and ignition.

 

[KTM530]

Thank you.

 

[KTM530]

does anyone see a problem using 2 stock injector resistors for Sequential fuel with low z injectors?

 

[ricoboost]

no problem for me running that way

 

[KTM530]

^what coils are you using?

 

[ricoboost]

1zzfe coil

 

[KTM530]

did you have to mod them to make them fit?

 

[ricoboost]

nope they are a bit tall but they fit well you only need to make a plate to hold them in place

 

[KTM530]

if u dont mind me asking, what idle control valve setup did u go with? I see the toyota one is quite a pain to wire up. http://www.msextra.com/forums/viewtopic.php?f=131&t=39624

 

[ricoboost]

its not me that has done the wirring but they use the stock one and it work well too

 

[KTM530]

are u using the ms3x?

 

[ricoboost]

yep

 

[KTM530]

Did anyone els wire in there own toyota 6 wire iscv with ms3x, and get results?

 

[Enraged]

Why not use a ford iscv? It won't bolt up but its just a two wire, and from what I've read most standalones don't like the stock one, too easy to lose position and stall.

 

[KTM530]

I am all about using something that works, but have u seen anyone adapt a different ISCV in our intake manifold? i havent got slightest idea what the ford one looks like.

 

[KTM530]

so i have to make one end fit in our manifold where the stock one went, and vent the other to air?
Maybe i can gut out a stock one and use it like an adaptor.