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Old 11-04-2014, 01:16 AM   #1
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Default Need a little clarification on full sequential injection

Edit: I have a ms2 v3.0 going to run ms extra
So i understand where to jump the u2 chip and remove R21,C20,C21,R22,R23,Y1,C24,C25 from the clock circuit.

Where I am confuse is that it says that pin 4 and 5 can now be used for injector 3 and 4 but then it tells me where the 4 injector channels are at.

Do i need to run my injector wires to these 4 channels? or can i just run from the normal injector bank 1 and 2, and pin 4 and pin 5.

Is there any additional hardware that need to be installed?

and yes i did look for answers lol non were present.

Last edited by dannymo; 11-04-2014 at 02:29 AM.
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Old 11-04-2014, 02:24 AM   #2
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Which megasquirt? Which board rev?
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Old 11-04-2014, 02:28 AM   #3
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oh shoot sorry

i have a ms2/v3.0 going to run ms extra
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Old 11-04-2014, 02:44 AM   #4
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I was planning to use the Jbperf board for full sequential.

4-Channel Ignition/Injection Driver Board
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Old 11-04-2014, 03:02 AM   #5
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Sequential Injection Code for MS2

Good board, ran my low-z injectors off the peak and hold board.

You do have that board, right? Right? Because if I'm understanding you correctly - no, you can not run your injectors directly off the megasquirt board by doing that mod without having the injector driver board.
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Old 11-04-2014, 11:36 AM   #6
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ahh this is what i needed to know. I will have to order up the board. it looks like you can run spark off of these too.

Thank you tons!
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Old 11-04-2014, 11:37 AM   #7
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I so don't miss hacking up a v3.0 board to run the simplest of functions.
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Old 11-04-2014, 11:41 AM   #8
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lol i am assuming you are running ms3. Kinda wished i just had saved up the little extra money and got the ms3 but ooohhh well. lesson learned
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Old 11-04-2014, 11:46 AM   #9
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it's all just so hacky.
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Old 11-05-2014, 12:24 AM   #10
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ya it is but im almost done making it then i get to put it in my car which im sure is another set of problems will arrive
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Old 11-05-2014, 12:51 AM   #11
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I understand it's hacky but is there anything about (Jbperf board for sequential) it that makes it less effective vs MS3? Serious question.

Last edited by kenzo42; 11-05-2014 at 01:57 AM.
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Old 11-05-2014, 01:56 AM   #12
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lol i don't really know this is my first ms. It seems like you can do a lot of things with the ms2 just easier with the ms3
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Old 11-05-2014, 09:18 AM   #13
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Quote:
Originally Posted by kenzo42 View Post
I understand it's hacky but is there anything about (Jbperf board for sequential) it that makes it less effective vs MS3? Serious question.
less effective, no. Modding a v3.0 ms2 board is just a PITA.


The circuit for injectors is pretty darn easy, if you have a clear proto area you could easily add all four drivers in there.

this picture shows how I add two extra drivers on a DIYPNP:



You'd have to build all four on a v3.0 Ms2.
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Need a little clarification on full sequential injection-dsc_1425.jpg  
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Old 11-05-2014, 09:19 AM   #14
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Quote:
Originally Posted by dannymo View Post
It seems like you can do a lot of things with the ms2 just easier with the ms3
That's one of the funnier things I've heard in the last month.
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