My 1994 2.3L Ranger is not firing on cylinders 1 and 4 on the rear coil pack and has a rough idle w/check engine light. Pulled the code as multiple misfire (OBD 1). I replaced the coil pack but it had no affect. I verified no spark on 1 and 4 by simply using a timing light and checking all 8 plug wires on both packs. I also pulled the plug wires off the coil with no arc on said cylinders. I next replaced the crank position sensor with no change. I want to know where I should be looking to solve this issue.. ignition control module, EEC or is it called the ECU? Thank you for any help. I am the original owner of the truck with almost 190,000 and this is the first time I’ve ever had to do any major work on it. It’s a great truck!

Does anyone know where the ECU is located on the 1994 Ford Ranger? I need a part # to order it.

It's mounted in the firewall, drivers side outboard of the steering column.

Most easily accessed by unbolting the plastic inner fender and going at
it through the wheel well.

part # Will be on the top of the ECU

there is a sticker with all the info of it

Depending what engine and transmission and if u have 2wd or 4wd here is a list of numbers

The number and letters after the type of transmission u have is what u need to match up

Ignition Cont, 4-140 (2.3L)
Ignition Cont, 6-245 (4.0L)
Ignition Cont, 6-183 (3.0L)
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-ADA
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-ADBRM
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-ADB
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-ADC
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-ADD
Elec Cont Unit (ECU), 4-140 (2.3L), AT, ID F47F-AFAMR
Elec Cont Unit (ECU), 4-140 (2.3L), AT, ID F47F-AFA
Elec Cont Unit (ECU), 4-140 (2.3L), AT, ID F47F-AFBMR
Elec Cont Unit (ECU), 4-140 (2.3L), AT, ID F47F-AFB
Elec Cont Unit (ECU), 4-140 (2.3L), AT, ID F47F-AFC
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, AT, ID F47F-ANB
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BGAMR
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BGA
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BGBMR
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BGB
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BGCMR
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BGC
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BHAMR
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BHA
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BRBMR
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BRB
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-CAAMR
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-CAA
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F4PF-NA
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-CBAMR
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-CBA
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F4PF-WA
Elec Cont Unit (ECU), 6-183 (3.0L), MT, ID F47F-CBAMR
Elec Cont Unit (ECU), 6-183 (3.0L), MT, ID F47F-CBA
Elec Cont Unit (ECU), 6-183 (3.0L), MT, ID F4PF-WA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, MT, ID F47F-CHA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x4, MT, ID F47F-CHA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, MT, ID F47F-CJAMR
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, MT, ID F47F-CJA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x4, MT, ID F47F-CJAMR
Elec Cont Unit (ECU), 6-245 (4.0L), 4x4, MT, ID F47F-CJA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, AT, ID F47F-CKA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, MT, ID F47F-CLAMR
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, MT, ID F47F-CLA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x4, MT, ID F47F-CLAMR
Elec Cont Unit (ECU), 6-245 (4.0L), 4x4, MT, ID F47F-CLA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, MT, ID F47F-CMAMR
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, MT, ID F47F-CMA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x4, MT, ID F47F-CMAMR
Elec Cont Unit (ECU), 6-245 (4.0L), 4x4, MT, ID F47F-CMA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, AT, ID F47F-CPAMR
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, AT, ID F47F-CPA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x4, AT, ID F47F-CRAMR
Elec Cont Unit (ECU), 6-245 (4.0L), 4x4, AT, ID F47F-CRA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x4, AT, ID F47F-DCAMR
Elec Cont Unit (ECU), 6-245 (4.0L), 4x4, AT, ID F47F-DCA
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, AT, ID F47F-DDAMR
Elec Cont Unit (ECU), 6-245 (4.0L), 4x2, AT, ID F47F-DDA
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-EA
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-EBMR
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-EB
Elec Cont Unit (ECU), 6-183 (3.0L), MT, ID F47F-FA
Elec Cont Unit (ECU), 6-183 (3.0L), MT, ID F47F-FBMR
Elec Cont Unit (ECU), 6-183 (3.0L), MT, ID F47F-FB
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-HAMR
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-HA
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-DKA
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-JAMR
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-JA
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-CCA
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F47F-DJA
Elec Cont Unit (ECU), 6-183 (3.0L), AT, ID F4PF-TA
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BDB
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BDC
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-AEAMR
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-AEA
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F4PF-MA
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F4PF-UA
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F4PF-UB
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BEA
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BEB
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-BPA
Elec Cont Unit (ECU), 4-140 (2.3L), MT, ID F47F-DGA
Elec Cont Unit (ECU), 6-183 (3.0L), MT, ID F47F-BZA
Elec Cont Unit (ECU), 6-183 (3.0L), MT, ID F4PF-VA

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Location of the ECU in a 1994 Ranger (A.K.A) EEC. It can be found in the firewall opening you see in the picture, next to the large plug (that plugs into the ECU).. sitting by the opening. I will post this up with other pictures for others to refer to when I'm done. Thanks STL for the help. It was tricky getting out as you have to take out the the plastic in the wheel well to get to the bottom nut for the bracket that holds it in the firewall.

I had a heck of a time finding any info on the web with regards to this info so I'm going to document it here.


CIMG2905-2.JPG

Okay..if found the problem. It was the ignition control module. I will write about this and post the picture so if other have the problem they can fix it.

Im havin alittle trouble with my ignition control module im thinkin, pullin error 224 1992 ford ranger 2.3 5 speed.

I had the same problem that I just fixed. My 94 ranger was misfiring and the CEL was on. replaced the ignition module and both coils and everything is running fine again. Also you might wanna check your DPFE and the two hoses that come off it. sometimes they get melted from the headers

I am cracking coil packs on 2004 2.3L. Could that also be the Ignition Module as well?