If I'm understanding correctly I'm basically trying to accomplish "if 4S= 12V then 3H= ground" but how do I configure that?
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03+ miatas power the car unlike every miata before its time. The ECU provides a ground to the main relay when the ECU is powered, thus activating the main relay.
Your MS3X must do the same. You have two options: 1. move the INJ E wire that's used for your CEL light to 3H and change the programmable outputs for INJE to always be on when the ECU is powered. 2. populate an LED circuit on the mainboard, send that output to one of the spare 1-2-3-4 holes on the mainboard to 3H, and change the programmable outputs for that LED to always be on when the ECU is powered. simply enabling the output with "power on value" to ON, should do the trick. But since you have to use an active condition, you must also set that to ON. then the parameters shouldn't matter. https://cimg2.ibsrv.net/gimg/www.mia...8d8a138143.png |
Originally Posted by Braineack
(Post 1488050)
03+ miatas power the car unlike every miata before its time. The ECU provides a ground to the main relay when the ECU is powered, thus activating the main relay.
Your MS3X must do the same. You have two options: 1. move the INJ E wire that's used for your CEL light to 3H and change the programmable outputs for INJE to always be on when the ECU is powered. 2. populate an LED circuit on the mainboard, send that output to one of the spare 1-2-3-4 holes on the mainboard to 3H, and change the programmable outputs for that LED to always be on when the ECU is powered. simply enabling the output with "power on value" to ON, should do the trick. But since you have to use an active condition, you must also set that to ON. then the parameters shouldn't matter. https://cimg2.ibsrv.net/gimg/www.mia...8d8a138143.png |
you can build this in your protoarea:
http://www.msextra.com/doc/ms1extra/...elayOutput.JPG I would use Js2 to the 1K (should equate to IAC2 on the above screen). then SPARE 1 to 3H. you can recycle one of the transistors that would have been used for the LEDs or Q2/Q4. (the higher amperage one here is probably the best). |
Originally Posted by Braineack
(Post 1488089)
you can build this in your protoarea:
http://www.msextra.com/doc/ms1extra/...elayOutput.JPG I would use Js2 to the 1K (should equate to IAC2 on the above screen). then SPARE 1 to 3H. you can recycle one of the transistors that would have been used for the LEDs or Q2/Q4. (the higher amperage one here is probably the best). Using the above schematic I've made these connections- JS2 -> 1K resistor input SPR1 (SPARE 1) -> 3H (MS-3) +12V -> 4H (MS-28) Ground -> Proto Ground Under Programmable On/Off Outputs: Use IAC2 (port PJ0 in TS) Port Settings: Check “Enabled” Set “Power On Value” and “Active Value” to On Active Conditions: Settings don’t matter. For the record the components I used were: 1x 100V 3W diode (didn't have any in 1W) 1x LED transistor (Q6/7/8) 1x 1K resistor Everything sound good enough to not blow things up? :x: |
yes, but how did you wire the 12v? did you actually go out to the harness for it? otherwise, the main relay is already connected to 12v...
to elaborate: you're not wiring up 12v, you're just sending your flyback diode to 12v. we typically use s19 for that (same spot you use for the flyback mod on the expander) https://cimg3.ibsrv.net/gimg/www.mia...ed90c6fb15.png |
Originally Posted by Braineack
(Post 1488214)
yes, but how did you wire the 12v? did you actually go out to the harness for it? otherwise, the main relay is already connected to 12v...
to elaborate: you're not wiring up 12v, you're just sending your flyback diode to 12v. we typically use s19 for that (same spot you use for the flyback mod on the expander) https://cimg3.ibsrv.net/gimg/www.mia...ed90c6fb15.png Yes I went to the harness for +12V by running a wire from the banded end of my diode to (MS-12/ 4H) but I'll change that to go to "S19" depending on your answer. |
s12 is a better place to stick the diode. it's behind protections of it's own and not raw 12v.
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Originally Posted by ungluedflyer
(Post 1488194)
Just to summarize what I've done before I plug it in:
Using the above schematic I've made these connections- JS2 -> 1K resistor input SPR1 (SPARE 1) -> 3H (MS-3) +12V -> 4H (MS-28) Ground -> Proto Ground Under Programmable On/Off Outputs: Use IAC2 (port PJ0 in TS) Port Settings: Check “Enabled” Set “Power On Value” and “Active Value” to On Active Conditions: Settings don’t matter. For the record the components I used were: 1x 100V 3W diode (didn't have any in 1W) 1x LED transistor (Q6/7/8) 1x 1K resistor Everything sound good enough to not blow things up? :x: |
Originally Posted by Braineack
(Post 1488249)
s12 is a better place to stick the diode. it's behind protections of it's own and not raw 12v.
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Originally Posted by ungluedflyer
(Post 1488251)
So for documentation purposes: Use the above info but run the banded end of the diode to S12 for "+12V" NOT to 4H(MS-3). Brian can confirm?
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Originally Posted by Braineack
(Post 1488281)
the non-banded side will go to MS-3 technically.
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Originally Posted by ungluedflyer
(Post 1488520)
Technically it's reading something but it's just showing 100kpa (atmosphere) I understand our cars have a MAF and not a MAP, but what actually tells the MS3X my manifold pressure?
https://cimg8.ibsrv.net/gimg/www.mia...a6e358a854.jpg |
those bent pins! how even?
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Originally Posted by SpartanSV
(Post 1488529)
MAP sensor is built in to the MS3X. You need to connect a vacuum line to it.
https://cimg8.ibsrv.net/gimg/www.mia...a6e358a854.jpg |
the MAP sensor covers the pins of the DB37, so there's an order of operations for assembly here.
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Originally Posted by Braineack
(Post 1488568)
those bent pins! how even?
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Originally Posted by Braineack
(Post 1488050)
03+ miatas power the car unlike every miata before its time. The ECU provides a ground to the main relay when the ECU is powered, thus activating the main relay.
Your MS3X must do the same. You have two options: 1. move the INJ E wire that's used for your CEL light to 3H and change the programmable outputs for INJE to always be on when the ECU is powered. 2. populate an LED circuit on the mainboard, send that output to one of the spare 1-2-3-4 holes on the mainboard to 3H, and change the programmable outputs for that LED to always be on when the ECU is powered. simply enabling the output with "power on value" to ON, should do the trick. But since you have to use an active condition, you must also set that to ON. then the parameters shouldn't matter. https://cimg2.ibsrv.net/gimg/www.mia...8d8a138143.png |
doesnt make sense.
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Originally Posted by Braineack
(Post 1489159)
doesnt make sense.
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