Moving/Adding ECM Pins

[87gtVIC]

How does one go about doing this properly?

I have an entire mustang ECM connector I salvaged from a yard. What would be the best way to go about removing pins and adding to my existing ecm plug?

[fmansfield444]

If its like the box panther connectors, I usually remove the cover, then dig the rubber gasket out, then use a pick the unclip the pins and they pull out. That's for the connector pins (female). For the male pins I have no idea I haven't ever tried.

[87stars_stripes]

It sounds like you want to remove pins from the mustang eec connector with the wire intact, plug it into a location within your 60 pin connector correct? Are you adding pins to your connector for some reason? Maf conversion? If so, any maf conversion write up will cover this. My advice is get one of those cheap jewelery screwdriver kits from the dollar store. With the connector disconnected from your ecu and the salvaged connector in hand, remove the black shrouds from the connectors and next the red "grate" that holds the pins in comes out by pulling up on it. Now, you need to get a small drill bit to drill through the back of the gray connector so you end up with a location hole for the pin your adding. If I recall you don't drill all the way through. Just enough to get a straigh entry point for the pin you're installing. Have your computer with the diagram on hand at all times so you don't second guess yourself. This is exactly what I did. Only difference is I purchased my pins at napa and ran new wire. It's probably easier to do it with factory pins. 4 maf wires, 2 vss wires, 1 FPM wire (useless) and that's all if I recall correctly. It's easier on a panther than a mustang because you're working under the hood not under the dashboard. The correct maf harness can be purchased at autozone for 16 bucks btw. I run a 70mm maf sensor/ housing which bolts to a 2000 crown vic airbox and tube. Good luck . Hope this helps . If it's even what you're doing! PM me if you need. Same basic instructions as a mustang conversion, but I like this writeup because it's simple to view. http://www.lincolnsonline.com/tech/00077.html

[87gtVIC]

Yes. I will be doing this because I will be going HO with mass air and retaining cruise control functions on my 87 Crown Vic.

Will all of the existing pins on my stock connector fly all over the place once the black shroud and red grate get removed from the housing?

Also, you find it easier yo work with the connector under the hood? Would it be easier to remove wheel well and work on it from there?

Thanks for the link. very handy. Link reassured me that I already had the correct information written down and ready to utilize.

I actually couldn't find anyone covers how to add pins on maf conversion write ups.....

[87stars_stripes]

Your pins wont fly anywhere. The black shroud may protect from water, but I haven't had any problem at all without it. I could do a maf swap on the side of the road in 15 minutes with a cordless drill, small screwdriver, 10 mm socket, electrical tape. Remove vacuum to the map sensor btw. Which ecu are you going to run? A9P?

[87gtVIC]

Yes. I have an A9P in possession that I am intending to use.

[87stars_stripes]

The one small mistake I did make, and I'll forewarn you is.... I ran all my wires from the eec connector properly (37,40,9,50) , but then spliced them into the maf sensor connector (A,B,C,D) backwards because of backwards view of the connector in photos. http://oldfuelinjection.com/images/maf03.gif
If you look at that diagram it's hard to tell if they're showing you abcd from the rear view or abcd from a front view of the connector. That is what I had backwards. Just be aware of that.

Correct Way
A. Pin 37 or 57
B. Pin 40 or 60
C. Pin 9
D. Pin 50





Main Ground (Power Ground) from the MA meter must be spliced into pin 40 or 60 on the MA computer.
This is a Black wire in the kit MA harness.
Signal Ground (Mass Air Return) must be installed into pin location #9 on the MA computer.
This is a Brown wire in the kit MA harness.
Signal (Mass Air Signal) must be installed into pin location #50 on the MA computer.
This is a Blue wire in the kit MA harness.
Pin #19 is the fuel pump run monitor. It must be installed from pin #19 on the MA computer to a Pink / Black wire behind the left kick panel.
This is a new wire that must be installed.

[87stars_stripes]

So label your wires 37, 40, 9, 50, as you complete them so you don't mix them up. Figure out which pin on your maf sensor connector is A, B, C, D label them, and now splice accordingly.
BTW, when you look at your connector you'll see that it makes more sense to use either 37 vs 57 (cant recall) or 40 vs 60 because of the tight layout of the connector.

[86VickyLX]

Somebody chime in about the stupid plastic pins that are covering the unused pins on the crown vic ecu harness. Everyone seems to forget about those. I've never had good luck with getting those damn things out. On my connector, they're teal/blue. And from what I gather, not seperable from the EEC connector.

[87stars_stripes]

"stupid plastic pins that are covering the unused pins on the crown vic ecu harness"??? I don't recall.

[gadget73]

the rubber gasket thing doesn't have the holes poked in it. I don't recall anything else blocking pins, but if there was I didn't have any special trouble with it. I probably used a drill bit and spun it by hand to punch through if there was.

[sly]

+1 just poke it

[86VickyLX]

I must be the only one who has seen this? it must be an early SEFI thing? I ripped it out cause I got tired of breaking the retaining pins on the ecu connector. If I have any of it left laying around I'll post a picture.

[fmansfield444]

I think I know what blue thing you're taking about. My car had that as well. I think I just drilled them out but I may have gotten it off somehow I don't remember