IAC mod on MS2 V3.0
#23
is the "spark output" the same as "sparkoutinv=" in Tunerstudio for the MS2? I want to make sure i have the settings for the improve spark circuit correct, and i didnt see the "sparkoutinv" option but i did see spark output and a drop down choioce of going low (normal ) and going high (inverted)
#24
one more question. For the IAC mod, i can run the diode from the middle prong of the transistor to S12, correct? as opposed to running that up near the IAC itself? Wasnt sure since i was going to send 12v power from another source than the MS2 so i wasnt sure if that would still work.
is the "spark output" the same as "sparkoutinv=" in Tunerstudio for the MS2? I want to make sure i have the settings for the improve spark circuit correct, and i didnt see the "sparkoutinv" option but i did see spark output and a drop down choioce of going low (normal ) and going high (inverted)
#26
awesome! i apprecaite all the help. i checked the thing out with a stim last night and its all working. I just need to add in the diode and she should be good to go. Then ill hot glue some bits to help survive the rally car's vibrations.
i called a miata parts salavage place and the ignitor is cheap enough so i wired it for the "improved spark circuit".
i called a miata parts salavage place and the ignitor is cheap enough so i wired it for the "improved spark circuit".
#33
Boost Czar
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7 and 2 would go back to the MS. those would be the spark outputs form typically the LED circuits.
5 is a 12v pull up for the tach signal.
so it would go:
1 - to coilpack 2 & 3
2 - MS spark output
3 - to coilpack 1 & 4
4 - tach output to gauge cluster
5 - 12v pull up from ECU for tach output
6 - ground
7 - MS spark output
8 - Power
5 is a 12v pull up for the tach signal.
so it would go:
1 - to coilpack 2 & 3
2 - MS spark output
3 - to coilpack 1 & 4
4 - tach output to gauge cluster
5 - 12v pull up from ECU for tach output
6 - ground
7 - MS spark output
8 - Power
#35
Boost Czar
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Join Date: May 2005
Location: Chantilly, VA
Posts: 79,501
Total Cats: 4,080
I wouldn't power the ignitor/coils through the same fuse that's powering the ECU. Only two wires from the ignitor should be going back directly to the MS, and that's the spark outputs from the MS.
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