Ford EEC-V to MegaSquirt adaptor board, I need your input.

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MegaScott
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Post by MegaScott »

Yea, maybe I should have been more descriptive, to test this board you need to have a vehicle that actually has an EEC-V, that's the Ford EEC with the 104pin connector.

I have no idea of you car has this type of EEC, I know here in the states they put them in Escorts from 1997-2003. but also that Escort is of different design than the European counterpart.
BaldTurboFreak
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Post by BaldTurboFreak »

IM putting together (actually finished this morning) a MS1-V3 for a 2000 V-6 TT I have been buildiing for a customer. Much to my suprise it has on-board coil drivers (no EDIS module), so Im constructing the extra 2 driver circuits in the proto area, and Im taking it out the case on a 4 prong Trailer connector. I have run secondary wiring and GM sensors for the mega to use. I haven't cut into the factory harness yet, are these boards availible for beta yet?
MegaScott
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Post by MegaScott »

BaldTurboFreak wrote:IM putting together (actually finished this morning) a MS1-V3 for a 2000 V-6 TT I have been buildiing for a customer. Much to my suprise it has on-board coil drivers (no EDIS module), so Im constructing the extra 2 driver circuits in the proto area, and Im taking it out the case on a 4 prong Trailer connector. I have run secondary wiring and GM sensors for the mega to use. I haven't cut into the factory harness yet, are these boards availible for beta yet?
Maybe you should have read the thread before posting, the board is in beta and I am taking testers for the board. you just have to actually use the board, and post your results, as well as e-mail me your address so I can send you the board.

Oh, normally on the Fords you just change the bias resistors to 27k. (r7 and r4)
BaldTurboFreak
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Post by BaldTurboFreak »

sorry to offend you.
As far as my choice on temp sensors. I would like to keep the factory ecm in place and hopefully happy(as it seems your board does). It was my understanding that pulldown type resistors cannot be shared by ecm's. So I figured Id just add the nessicary thermistors in to alleviate the problem.
BTF@baldturbofreak.com
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Post by sparkandfuel.com »

Megamucke wrote:
MarkW wrote:
Maybe I'm mistaken but aren't the escorts EEC-IV? Pretty sure the focus had been introduced by the time EEC V came in
Damned, you could be right!
I count on one of those DIY repair books.
They say that my modell is a EEC-V.


@Scott
Please wait with the board I will check this first.
(tomorrow)
Take a look at the ECU, it will say right on it.
MegaScott
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Post by MegaScott »

BaldTurboFreak wrote:sorry to offend you.
As far as my choice on temp sensors. I would like to keep the factory ecm in place and hopefully happy(as it seems your board does). It was my understanding that pulldown type resistors cannot be shared by ecm's. So I figured Id just add the nessicary thermistors in to alleviate the problem.
BTF@baldturbofreak.com
Not offended by any means.

What was the reason you want to keep the factory ECM?
This board is designed to replace your ECU with the addition of a Megasquirt and cable.

Factory Harness->EEC-V adaptor board->Standard Relay board cable->MegaSquirt.

your stock ECU will not be required, unless you want to piggyback for whatever reason, then it may be more complicated as you have OBD2 to contend with.
Megamucke
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Post by Megamucke »

Oh man this is sooooo embarrassing
The book is wrong

Its a EEC-IV I have
Thanks guys!

@Scott
Sorry for the confusion! :oops:
Anyway! So I will order a EEC-IV board soon. :lol:
BaldTurboFreak
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Post by BaldTurboFreak »

Actually thats the thing there, OBD11. Im trying to leave the factory ecm in place so the dash, and other factory stuff works. And hopefully be able to "log in" to the state.
MegaScott
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Post by MegaScott »

BaldTurboFreak wrote:Actually thats the thing there, OBD11. Im trying to leave the factory ecm in place so the dash, and other factory stuff works. And hopefully be able to "log in" to the state.
In that case you "just" need to install simulators for everything and just tap MegaSquirt into the harness, not exactly sure why, but it's your deal.

The roughest part about the EEC-V is on the returnless fuel rail cars, in that case a standalone controller, or a conventional fuel rail should be installed. With the GPIO board you should be able to take in fuel pressure and modulate an output to drive the fuel pump module.

The EEC-V comes in many flavors, the one in my 97 Escort doesn't run anything except the engine. Please consult your engine manual before assuming that everything is run from the ECU, that's not always the case.

Ok, this thing is really turning out to be a dog, I can't even give them away. :lol:
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Post by 78Spit1500Fed »

Chin up, Scott!

I have my board and most of the parts.

My plan is to jump pretty much everything off the EEC-V adapter board right back into a EEC-V loom that runs out a grommet.

Only the injectors and sensors will have any connection to MegaSquirt. Of course only the injectors will be "simulated" to the stocker.

My reasoning for this is just what you mention above... my EEC-V runs everything including tranny, dash, CC, AC and even ties very intimately into the body and brake computers...

I'll be starting on this sometime next week... I would like to have it to the point of at least starting reliably before I leave for Colorado.

-Brian
Image
1slow305
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Post by 1slow305 »

Scott,

I would have really loved to try one of these out, but I did away with the complete stock computer and wiring harness and did it all myself. This is on a 95 Mustang Gt with a 337 C.I 88mm turbo car.

The boards you had in the past didnt have the outputs built into them that I needed, or that I could comprehend at least. But this board seems to hit the spot for something I would be after.

But if you could please lend your knowledge in a pm or maybe another thread, how the hell do you get the AODE to shift? What pins on the EEC connector to you apply power/ground to? Right now the car is stuck in second. I just thought you would know.

And Scott..........




Good luck on the boards. If I ever get around to doing another mustang, Ill be sure to let you know.
BaldTurboFreak
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Post by BaldTurboFreak »

Hey Scott,
I got the board this week and Im working on implementing it into the system. Those pads are going to be super-helpfull in making a passthru cable from an old ecm+harness. I'll document the process as best I can and post it up on my website.
dridders
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Post by dridders »

Do you have some EEC-V boards left (maybe even some free ones ;-))? I'll soon convert my Mondeo Duratec V6 to MS2 and you board would keep me from running even more wires through the car
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Post by MegaScott »

dridders wrote:Do you have some EEC-V boards left (maybe even some free ones ;-))? I'll soon convert my Mondeo Duratec V6 to MS2 and you board would keep me from running even more wires through the car
I still have some EEC-V boards to give away, you simply need to satisfy all of the highly stringent requirements to get one. You need to send me your snail mail address.

I don't plan on "selling" the EEC-V adaptor until the board is properly checked out.
dridders
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Post by dridders »

Sent you a PM as email seems not to be available
Jspeed
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Post by Jspeed »

Scott,
First off I wanted to say thank you for taking the time and effort to bring some really cool new developments to the sport and us car freaks.

I have a Megasquirt and a 2000 Mustang GT 5-speed.
I have not installed the Megasquirt because of the EEC-V and OBDII issues. The car needs to pass NYS inspection to be street legal.
Your board presents a possible solution.

2000 Mustang GT
V8 COP Ignition
5-Speed Manual Trans


Enclosure: I think a generic/custom enclosure is the way to go. I see no point in trying to get the the board to fit in the stock case. Who cares? Its just a pain and for no good reason.

The dash on these cars is digital and driven by a CAN bus(i believe) signal from the ECU. This is a critical feature since losing the dash negates the benefit of a plug in unit. If the only way to get this to work is to piggyback the factory ECU then that is the best way to go.

I would like to help you develop the board for the EEC-V modular mustang market.
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Post by MegaScott »

Jspeed wrote:Scott,
First off I wanted to say thank you for taking the time and effort to bring some really cool new developments to the sport and us car freaks.

I have a Megasquirt and a 2000 Mustang GT 5-speed.
I have not installed the Megasquirt because of the EEC-V and OBDII issues. The car needs to pass NYS inspection to be street legal.
Your board presents a possible solution.

2000 Mustang GT
V8 COP Ignition
5-Speed Manual Trans


Enclosure: I think a generic/custom enclosure is the way to go. I see no point in trying to get the the board to fit in the stock case. Who cares? Its just a pain and for no good reason.

The dash on these cars is digital and driven by a CAN bus(i believe) signal from the ECU. This is a critical feature since losing the dash negates the benefit of a plug in unit. If the only way to get this to work is to piggyback the factory ECU then that is the best way to go.

I would like to help you develop the board for the EEC-V modular mustang market.
Jspeed,

Thanks for your interest in getting something going here on the EEC-V front, I think it is a worthy project, though not a trivial task, some work has been done already due to the beta test of the current board. I do believe that a piggyback solution is probably the best route for that application, however the adaptor board does not specifically target a single application, My goals are to create a universal solution that can be of use both here in the States, where predominatly the target market is for V8 Mustangs, and overseas where the market is generally high performance 4 cylinders. Making it universal is the real challange, thus the reason that the adaptor board is kept as simple as possible, with only a few spare circuits not provided on the Megasquirt platform, yet circuits that may be needed to perform functions that are required to make the engine function given the type of ignition and the added I/O required to make most of the required functions work without going to a piggyback install.

The biggest problem with the OBD2 cars is that the ECU's are more integrated into the Car, doing things that are really ancillary functions not related to Powertrain control. because of this and the larger pin count of the ECU it becomes a rather expensive proposition to buy all of the associated wiring and connectors to do a complete functional piggyback implementation, in the end you may be better off just building simulators and replacing your engine harness with a second harness compatable with MegaSquirt. Although I guess it would not be all that hard to add an OBD2 simulator chip to the adaptor board.

It's not a hassle to make it fit a stock ECU case, they aren't all that hard to get, I've picked them up off Ebay for less than $5 sans shipping. You'll probably want to keep your Stock ECU for OBD2 functions anyway and it is most convenient to mount the adaptor into the stock ECU location. You want the early EEC-V 96-99 with the narrow EEC-IV style case. You can ID them by the 104 pin connector and they still have the Black heat sink "springs" on the side.

2000 Mustang? I'll have to pull out my Alldata CD's and see what's involved in that implementation, just in the off chance it may be do-able without too much hassle....
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Post by Mr_Zetec »

Hello to everyone.
These are the photo of the Scott's EEC-V interface that I must use on my Fiesta. I had problems with the VB921, so I changed the hardware/software to work with EDIS system. The Edis module go into the original ECU case with the Scott interface!:

Image

Image

The interface is builted good, this is a good work: I didn't do any mods to the original wiring loom.
pdfbt40
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Post by pdfbt40 »

Hi Scott,

Just A point I've not seen covered. Is there a version of this board using the 3 Row, 60 pin connector used on many (European ?) EEC-V as well as the 104 pin?

Also, since 1998, several vehicles use EOBD (European OBD). Doesn't seem too different to OBDII i.e. an ELM chip can communicate with it. However, as I think has been mentioned, for street cars this means the retention of the EEC-V for all the instrumentation, 'intelligent' alternator, security, etc. .

In the UK there is reasonably wide experience of this piggy-back arrangement with other ECU, even to the extent of still using the EEC-V to handle the idle. This means the higher functions of PS, AC, Battery charging, etc are recognised and still input into the idle control. Diagnosics can also partially function, especially if some placebo is given to the EEC-V for inputs/outputs that cannot be shared.

I'm planning at least one MS install at the moment, although that will probably be a 104 pin connector, and less EOBD content. However, I would imagine some Focus owners being very interested in the first question above, including myself.

Cheers

Martin
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Post by MegaScott »

pdfbt40 wrote:Hi Scott,

Just A point I've not seen covered. Is there a version of this board using the 3 Row, 60 pin connector used on many (European ?) EEC-V as well as the 104 pin?

Cheers

Martin
You are talking the EEC-V with the EEC-IV style connector. I have never even seen one let alone seen a schematic which is what you would need to make it work with the current EEC-IV adaptor board.

I think the piggyback is the way to go on most of the newer EEC-V vehicles, you get to a point where any sort of adaptor would be more complicated than the Megasquirt, and it's not like I make any money off this stuff, It's pretty difficult to design a board for a car you haven't even seen, not to mention the fact that you can't put a scope on any of the stock ecu signals. Most people when they get into it they don't realize how invloved the ECU's are in these vehicles. Unplug it and nothing works anymore. This is the reason I have been reluctant to release another board for EEC-V. I get far too many emails from peope that want the board to do miracles, and they expect me to build a custom board that only works on a few thousand cars in the UK for $25. Sure there are some years and model of EEC-V where a board like this is ideal, but you can't use it in anything else, yet you could use it in the newer cars, and then who would be blamed when the dash and the alternator won't work? I would rather not have any of that.

The EEC-IV is so much more simple. world wide there's only about two dozen configurations, and the differences are only about a dozen pins altogether. In fact I have only seen one model of EEC-IV where my EEC-IV board will not work, that is the Ford Taurus SHO, which is a limited edition vehicle anyway and not many people adding a turbo to that since it's already a high performance car, the level of integration on that EEC is such that even the Cruise control is built into the EEC, I don't think many EEC-V have that function. But thats fine, the EEC-IV adaptor works with millions of other vehicles.from 1983 to 1995 here in the US, and up to 1998 in the rest of the world.
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