Title: ECU mystery box
Post by: cobrajoe on March 02, 2014, 11:10:17 PM
Post by: cobrajoe on March 02, 2014, 11:10:17 PM
I have a confusing situation here:
My friend was at a swap meet and found a guy selling Mustang parts, so he grabbed an ECU for me from a guy that said it was from an '88 Mustang 5.0. (I'm collecting parts for an HO swap). He drops it off at my place, and we are completely dumfounded by the code on it.
It says TB over where the code should be, but that doesn't match up with any code on the Old Fuel Injection (http://"http://oldfuelinjection.com/?p=17") website. The part number is E6ZF-12A650-B2A-MR, but is also noted as a REMAN.
The closest info I could find was a PN search on Rock Auto that showed the PN as an equivalent to an '85-'86 Mustang, Capri, LTD, Marquis, and E series. That's a pretty wide range of models, and especially confusing because the 5.0 in the Mustang switched from carb or CFI in 85 to Speed Density in '86, and any smaller engines weren't shared with the full size cars and vans.
So, help me out here. What do I actually have or how could I figure it out?
My friend was at a swap meet and found a guy selling Mustang parts, so he grabbed an ECU for me from a guy that said it was from an '88 Mustang 5.0. (I'm collecting parts for an HO swap). He drops it off at my place, and we are completely dumfounded by the code on it.
It says TB over where the code should be, but that doesn't match up with any code on the Old Fuel Injection (http://"http://oldfuelinjection.com/?p=17") website. The part number is E6ZF-12A650-B2A-MR, but is also noted as a REMAN.
The closest info I could find was a PN search on Rock Auto that showed the PN as an equivalent to an '85-'86 Mustang, Capri, LTD, Marquis, and E series. That's a pretty wide range of models, and especially confusing because the 5.0 in the Mustang switched from carb or CFI in 85 to Speed Density in '86, and any smaller engines weren't shared with the full size cars and vans.
So, help me out here. What do I actually have or how could I figure it out?
Title: ECU mystery box
Post by: jangus on March 03, 2014, 12:16:53 PM
Post by: jangus on March 03, 2014, 12:16:53 PM
Did you buy that at the Lincoln swap meet? From the two guys who were selling A BUNCH of Fox Mustang parts?
Title: ECU mystery box
Post by: cobrajoe on March 03, 2014, 08:06:00 PM
Post by: cobrajoe on March 03, 2014, 08:06:00 PM
That's exactly where it's from.
Title: ECU mystery box
Post by: V8Demon on March 03, 2014, 10:07:50 PM
Post by: V8Demon on March 03, 2014, 10:07:50 PM
I've found Rock Auto's website has a lot of things that carry over in the way you describe. As certain models of cars get older, the misinformation surrounding them grows. It's amazing how much of this I see perusing NOS parts on Ebay as well.
Side note: HOLY HELL there are a TON of different ECU codes for 2005-2010 Mustang 4.6 3v's!!!!!!
Side note: HOLY HELL there are a TON of different ECU codes for 2005-2010 Mustang 4.6 3v's!!!!!!
Title: ECU mystery box
Post by: 87 T-BIRD on March 04, 2014, 08:50:01 AM
Post by: 87 T-BIRD on March 04, 2014, 08:50:01 AM
Quote from: cobrajoe;429938
I have a confusing situation here:
My friend was at a swap meet and found a guy selling Mustang parts, so he grabbed an ECU for me from a guy that said it was from an '88 Mustang 5.0. (I'm collecting parts for an HO swap). He drops it off at my place, and we are completely dumfounded by the code on it.
It says TB over where the code should be, but that doesn't match up with any code on the Old Fuel Injection (http://"http://oldfuelinjection.com/?p=17") website. The part number is E6ZF-12A650-B2A-MR, but is also noted as a REMAN.
The closest info I could find was a PN search on Rock Auto that showed the PN as an equivalent to an '85-'86 Mustang, Capri, LTD, Marquis, and E series. That's a pretty wide range of models, and especially confusing because the 5.0 in the Mustang switched from carb or CFI in 85 to Speed Density in '86, and any smaller engines weren't shared with the full size cars and vans.
So, help me out here. What do I actually have or how could I figure it out?
Title: ECU mystery box
Post by: jangus on March 04, 2014, 01:30:02 PM
Post by: jangus on March 04, 2014, 01:30:02 PM
OP, if you can confirm the correct application for this box, and it isn't what you were told when you bought it, PM. I can put you in touch with the seller.
Title: ECU mystery box
Post by: turbotrav on March 04, 2014, 09:09:44 PM
Post by: turbotrav on March 04, 2014, 09:09:44 PM
So is that a puter for H.O. mustang 5speed 86-88?
Travis
Travis
Title: ECU mystery box
Post by: cobrajoe on March 04, 2014, 09:19:20 PM
Post by: cobrajoe on March 04, 2014, 09:19:20 PM
Quote from: 87 T-BIRD;430023
My buddy at a Ford dealer looked it up for me and he says it comes back to a 85-86 Mustang/Capri 2.3L non-turbo.
I believe that's the case. Looking at the pinout, pins 12, 13, 14, and 15 should be connected to Injectors 3, 2, 5, and 6, and all of those pins are non existent on the computer's plugin.
Pin #1 is in the top right.
Here (http://"http://i962.photobucket.com/albums/ae107/fast194hotmailcom/88-91_50_EEC_Wiring_Diagram.gif")'s the pinout diagram I used, it's for a MAF setup, but everything but the MAP/BAP should be the same I believe.
Jangus, I actually have his phone number, my friend grabbed it for me because of some injectors he would sell to me too. Maybe I can get those in trade for the computer. (I'll make sure they're correct this time too). If I can't get him on the phone for some reason, I'll send you a PM.
Thanks everybody, I'll get it sorted out now that I know what I'm dealing with.
Title: ECU mystery box
Post by: Haystack on March 04, 2014, 10:01:26 PM
Post by: Haystack on March 04, 2014, 10:01:26 PM
I found a couple ebay listings with similar numbers that said 85-86 capri, ltd and grand marqis. I wasn't aware of any 2.3 grand marqis having an i-4 so I guessed it was incorrect and didn't want to mislead you.
Title: ECU mystery box
Post by: TurboCoupe50 on March 04, 2014, 10:10:55 PM
Post by: TurboCoupe50 on March 04, 2014, 10:10:55 PM
Quote from: cobrajoe;430040
I believe that's the case. Looking at the pinout, pins 12, 13, 14, and 15 should be connected to Injectors 3, 2, 5, and 6, and all of those pins are non existent on the computer's plugin.
Pin #1 is in the top right.
Here (http://"http://i962.photobucket.com/albums/ae107/fast194hotmailcom/88-91_50_EEC_Wiring_Diagram.gif")'s the pinout diagram I used, it's for a MAF setup, but everything but the MAP/BAP should be the same I believe.
Jangus, I actually have his phone number, my friend grabbed it for me because of some injectors he would sell to me too. Maybe I can get those in trade for the computer. (I'll make sure they're correct this time too). If I can't get him on the phone for some reason, I'll send you a PM.
Thanks everybody, I'll get it sorted out now that I know what I'm dealing with.
The TAB & TAD solenoids have different pin out on SD vs MAF, but other than added pins for meter are same...
Title: ECU mystery box
Post by: jangus on March 04, 2014, 10:22:14 PM
Post by: jangus on March 04, 2014, 10:22:14 PM
Quote from: cobrajoe;430040
I believe that's the case. Looking at the pinout, pins 12, 13, 14, and 15 should be connected to Injectors 3, 2, 5, and 6, and all of those pins are non existent on the computer's plugin.
Pin #1 is in the top right.
Here (http://"http://i962.photobucket.com/albums/ae107/fast194hotmailcom/88-91_50_EEC_Wiring_Diagram.gif")'s the pinout diagram I used, it's for a MAF setup, but everything but the MAP/BAP should be the same I believe.
Jangus, I actually have his phone number, my friend grabbed it for me because of some injectors he would sell to me too. Maybe I can get those in trade for the computer. (I'll make sure they're correct this time too). If I can't get him on the phone for some reason, I'll send you a PM.
Thanks everybody, I'll get it sorted out now that I know what I'm dealing with.
I'll say this once: It's more important to know who you're dealing with. Trust me. That's all I'll say about one of the people you bought this computer from.
Title: ECU mystery box
Post by: TOM Renzo on March 05, 2014, 07:16:53 AM
Post by: TOM Renzo on March 05, 2014, 07:16:53 AM
If the ECM is not confirmed either by a factory number or a reman identification number BUYER BEWARE. This is why in most cases a stand alone system is normally your best bet or a known good and correct ECM NUMBER. Just me could be wrong. My ford guy says that ECM is a 4 banger i did not count the pins. How much did it cost you??? If it was cheap use it as a paper weight and chuck it up to experience. By the way how do you know the ECM is GOOD. Even if it has the correct numbers and application the unit just might be a DUD??? Just a thought!! Never buy a pig in a poke. That is unless it was dirt cheap and you took a shot. Good luck!!
Title: ECU mystery box
Post by: cobrajoe on March 05, 2014, 09:50:47 AM
Post by: cobrajoe on March 05, 2014, 09:50:47 AM
Quote from: TOM Renzo;430057
If the ECM is not confirmed either by a factory number or a reman identification number BUYER BEWARE. This is why in most cases a stand alone system is normally your best bet or a known good and correct ECM NUMBER. Just me could be wrong. My ford guy says that ECM is a 4 banger i did not count the pins. How much did it cost you??? If it was cheap use it as a paper weight and chuck it up to experience. By the way how do you know the ECM is GOOD. Even if it has the correct numbers and application the unit just might be a DUD??? Just a thought!! Never buy a pig in a poke. That is unless it was dirt cheap and you took a shot. Good luck!!
I paid $40 for it, which is at least $25 less than any ebay ECU for a 5.0, but also about $25 more than someone should pay for a 2.3L ECU. I took the gamble and lost this time, but it's not bank breaking.