MS3X Plug and Play Adapter

[Hardline]

Anyone interested in this? I am working on the pinouts right now, and as soon as I have some disposable income, I plan on building one inside of the case of the stock computer. At the very least, I will post up pics of the process and finished product.

[inis]

ms3x is pointless using the stock harness, might as well go ms2..also the fuel pump module will have to be changed in the trunk.

[Hardline]

I planned on keeping most of the functionality of the Stock ECM, which requires the 3X board for sequential injection, cam input, and all the various high and medium amperage outputs that the 3X board has.

The FPDM uses a 0-5 volt signal to signal fuel demand, so with a bit of tweaking on a PID process, I would be able to use the stock fuel system as well.

[inis]

I planned on keeping most of the functionality of the Stock ECM, which requires the 3X board for sequential injection, cam input, and all the various high and medium amperage outputs that the 3X board has.

The FPDM uses a 0-5 volt signal to signal fuel demand, so with a bit of tweaking on a PID process, I would be able to use the stock fuel system as well.

Stock injectors are batch fired, 3x board is overkill for using the stock wiring harness and UNUSED functions. ms2 can run the fuel pump module but would be pointless, all outputs that ms3x has, ms2 can do...atleast for what the stock harness needs.

[mellowness65]

good stuff dudes, I'd post saying I'm interested but won't have cash for anything of such significance for a few years yet :/

[Hardline]

Inis, according tho the FSM, it is sequential.



The sequential multiport fuel injection (SFI) system is classified as:


multi-point.
pulse timed.
mass air flow-controlled.

Pressurized fuel supplied through a fuel injection supply manifold (9D280) is pulsed through four fuel injectors


I also planned on keeping the EVAP, VCT, and AC systems functional, as I do not want my garage to reek of fuel vapor after parking it, and contrary to popular belief, southern Colorado is quite "deserty" and gets friggin' hot in the summer. I want to keep VCT for two reasons, which are emissions, and if I were to swap an SVT Focus head in. I am a bit OCD on emissions as Denver has emissions vans that sniff your car's exhaust as you drive by, and if you fail, you get a fix it ticket. They do not do an OBD scan or a visual inspection however, in my county anyways.

Also, with the option of utilizing wires from other non-used systems, such as the MAF and power steering pressure sensor, I could implement COP with the stock harness and IMRC for the SVT Focus Intake, only making changes in the engine bay, and not having to run all new wires out to the engine bay.

[Foundnemo25]

I have to agree with Inis on this one. Im running MS2 and everthing that you are trying to control using the factory harness, would be better off going with 2 instead of 3. COP will not be able to do with the stock wire harness, you are going to have to rewire the coil plug, therefore you might as well build a harness for ONLY the things that you need.

[Thnikkaman]

I build an adapter using the factory harness. i still had to run a good pile of wires for sequential spark, IAT, boost control, etc. For the fuel pump, i jumpered the harness at the control module in the trunk and used the factory relay to power a return-style pump.

using the factory harness made fuel, ect, fan control and powering the MS box really easy and clean. Make sure you double check the wiring once it is in the car. i accidentally wired the fuel injectors to fire 1-4-3-2 since the pins are so close together on the EEC-V connector. Good thing i double checked!

i'm not sure you could physically fit the MS board, ms3 daughter and ms3x in the factory computer enclosure. I would be pretty neat if you could though.