Posted by Quark Okay... Nice with the firmware.. Allthough I´am p[more ...] 18 Jun : 16:43
Posted by James What software are you using? The MSQ in my downlo[more ...] 18 Jun : 15:13
Posted by James Hi, No not as yet - the car had to come off the ro[more ...] 18 Jun : 15:12
Posted by shelly does anyone have all the basic setting needed to s[more ...] 12 Jun : 06:17
Posted by shelly Jumpered JS10 to IGBTIN only. IGN jumpered to IGB[more ...] 10 Jun : 16:34
Posted by shelly have removed 1K resister from 12V source to IGN, a[more ...] 10 Jun : 15:22
Posted by shelly we have 12V+ at pin36 instead of what i would expe[more ...] 10 Jun : 10:26
Posted by Quark Hi JamesHave you found a solution for the dissy, a[more ...] 05 Jun : 15:31
Posted by mymr2 How are you feeding the rpm signal to the tacho? I[more ...] 30 Jul : 04:48
Posted by James Watch your inlet temp sensor - when sitting still [more ...] 09 Jul : 08:49
Celica GT4
James, Monday 22 January 2007 - 16:14:28
I'm the proud (though often broke) owner of a '91 Toyota Celica GT4 (Turbo4WD) - GT-Four number 12112. As standard they muster up 200bhp and over 200lbft of torque. My hobby is increasing that as and when funds allow.
Here is my MS pinout so far. This is just a display of what pins on the harness go to what features. I'll post details of how each of these pins connects to the MS soon, if you cant figure it out before me.
As I have described these are all standard pin placements and if you just add the extra 3 you can do so and interchange with the stock ECU without blowing anything (well I could, there were no pin in the harness at that point - double check yours! Late 185s will be different).
If youre using a ground-dizzy (see below) you will only need the G- and NE pins (-ve and +ve respectively for the VR sensor), if not you'll need the G1 and G2 linked together too for your second VR+ve - all sensors share G- as their earth.
I no longer recommend using the 12-1 setup - I cannot get it to function flawlessly so I am moving to a crank trigger. Details will follow but for now, if you feel adventurous.... Diagram of how i ground the teeth on my 3S-GTE dizzy for use with Megasquirt.
And here's the finished item. One 3S-GTE dizzy, ground for use with MS. AFAIK you can copy this and be up and running in no time. CAUTION This LOOKS identical to other toyota dizzies but ISNT, i think, is the B1 on the wheel, seems to be different on different engines and teeth are misaligned to this. I saw a B3 wheel cut for MS and it turns out its sensors are differently located so different teeth are used. DO NOT hold me responsible for double checking this info before grinding your teeth! Your stock ECU will no longer work when this mod is done.
Codebase and outputsSettings: Generic wheel decoder Wheel decoder settings: Use 25 style decoder 12-1 Trigger A = 1 Trigger B = 7
In spark settings: Trigger angle "70", set the "fixed angle" box to 10 and then tune your dizzy position with a strobe as youd do it with a stock ECU and get it to 10 BTDC. Make sure it doesnt move when you rev the engine gently to a few Krpm. Now go back and change Fixed angle to -10 and start tuning your spark map MSQ in downloads section will get you going but go easy as timing may be advanced for your fuel - I was running 100RON, and its not finalised - i lost my "tuned" version last month when the laptop died.
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I poked around your site a bit, but which coolant temp sensor are you using? If the stock one, so you have the INC file laying around for it ... or just anything in general you can tell me about using it I guess Its funny, I've dinked with MS quite a bit, but always used the GM CLT. Would like to avoid that on my MR2.
What CLT are you using? 
Its funny, I've dinked with MS quite a bit, but always used the GM CLT. Would like to avoid that on my MR2.