Originally Posted by skidude
(Post 682637)
I've got the MS, and I've started building. I just got to step 50, and I wanted to make sure I'm reading the schematic right... all the resistors and stuff I need is already in the kit, right?
Parts will cost your $4 shipped at digikey.com And for future parts, do I need any pieces that didn't come with the kit? Here's an MS2 I did with that circuit so you can get an idea of all the mods you need to do (Take in mind there's a lot more circuits on that board than you'll need when using the MS3X card): http://www.boostedmiata.com/gallery2...2/DSC_0012.JPG http://www.boostedmiata.com/gallery2...2/DSC_0010.JPG If he wanted to go MS3, all he would have to do is remove the ms2 daughter board and replace with the MS3 and flash the firmware. He could even load his MS2 MSQ and be on his way in like ten minutes. |
yes, green is what is there in the original design. Gray is what you'll be installing instead.
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Originally Posted by Braineack
(Post 680321)
There is no need to do "Joe's Spark Circuit".
When you buy the MS3 kit and MS3x, they come with the DB37 connectors you need to make a harness. Talk to y8s about the mazda ECU connector, I think he has a spare. The Input Circuit you DO need to add is this one outlined here: http://westfieldmx5.devocht.com/index.php?section=35 see Step 50. You will also need to do the alternator control circuit outlined above. Also very little needs actually be populated on the mainboard, so save yourself the trouble when building it and omit the circuits that are pointless. It should also be outlined on the build thread linked above. Don't follow any other "additional/optional circuits" or the step 65. |
Wow, I'm also intimidated by the alternator circuit. That seems like a lot of crap to fit in the proto area, not to mention I don't know how I'll fit 3 wires into those holes.
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Originally Posted by skidude
(Post 687610)
Wow, I'm also intimidated by the alternator circuit. That seems like a lot of crap to fit in the proto area, not to mention I don't know how I'll fit 3 wires into those holes.
I built mine on a small piggyback board. |
I'm in the same boat on not sure what all I need. Only I have a 91, is there anything else besides buying the MS3 and MS3X unassembled kit? I'm just :confused:
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Any idea where I can get an MS3 base map for an 02? I'm still working with the stim but I'm having trouble getting it to sync or show anything, but it doesn't have any kind of map I don't think.
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What tach input circuit did you build?
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I built the one outlined in step 50 of that westfieldmx5 set of instructions.
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download the diypnp 99-00 map. that'll get you started.
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Well, I loaded that map, and I get 158 errors, the rpm shows 65043 and it still doesn't sync. I feel like such a noob, my MS1 worked perfectly the first time I plugged it in when I built that one.
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Here is y8s msq for his 01. Should help with getting your 02 running.
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That map works, though none of the other pots seem to do anything. I'm reading up on the JimStim now though.
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do you have the jumpers and switches setup correctly?
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jumpers and switches on the JimStim? I think so, but I guess I don't really know where they're supposed to be. I know the switches are right, and I know the O2 is set on narrow band, but besides that I don't know. the pin labelled "2nd trigger" is jumped to the pin labelled "I1A (25)"
The three-pin row labelled "Primary tach" has the left two jumpered, and the two right next to it appear to both be jumped to the 5V pull up. That looks like it for jumpers. |
you need to do this:
http://www.jbperf.com/JimStim/JimSti...ers_square.JPG shouldn't need any pull up jumpers. and also this: http://www.jbperf.com/JimStim/JimSti...itches_25s.bmp 2nd trigger jumper should stay where it is. It'll never sync if the rpm shows 65043. You must first clear the conflict error. |
Cleared the conflict error last night, so now rpm works. I will remove the pull up jumpers after work today and report back on the other pots.
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Randomly mine doesn't work unless I have pullup jumpers in place.
Works fine on the car (and has done for years). So don't discount needing the pullups. |
Originally Posted by skidude
(Post 687610)
Wow, I'm also intimidated by the alternator circuit. That seems like a lot of crap to fit in the proto area, not to mention I don't know how I'll fit 3 wires into those holes.
http://homepage.mac.com/niklasfalk/i...or_Control.png |
Finally someone posts a diagram that makes logical sense to me.
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