94 Computer
Welcome to the forum
Most auto parts stores can order them, on-line parts also usually list them
1994 4.0l matters
4x4 doesn't matter in 1994
Manual or automatic trans does
Part number will start like this: F47F-12A650
F4 = 1994
7F = Ranger electric
12A650 = Fords generic part number for ALL engine computers, still used today, a 2018 Ford car will have a 12A650 computer part number.
Google: F47F-12A650 4.0l
1994 Mazda B-4000 used same computer, 4.0l but still need to match trans
The last numbers(after 12A650) vary, they are the firmware and software versions, Ford never released a decoder for these numbers/letters
There will also be a larger STAMPED numbers/letters on the label, thats the Final software version loaded on to computer when vehicle was assembled
It all doesn't need to match exactly, the last numbers/letters that is
1994, 4.0l engine, manual or auto trans are the big ones, 1993 will work
EGR or NO EGR is also important, only Calif. 4.0ls had EGR
4x4 didn't matter in 1994 it used a separate module that isn't connected to computer
The EEC-IV computer in the 1994 and older Rangers generally didn't have any problems, but what could happen is that one or more of the 3 Blue capacitors on the circuit board could leak after 20+ years.
These can be changed, not too hard and costs under $5
Read here on that: http://support.moates.net/capacitor-...-ford-a9l-ecm/
A9L is an EEC-IV computer, just different software for V8 engine
Most auto parts stores can order them, on-line parts also usually list them
1994 4.0l matters
4x4 doesn't matter in 1994
Manual or automatic trans does
Part number will start like this: F47F-12A650
F4 = 1994
7F = Ranger electric
12A650 = Fords generic part number for ALL engine computers, still used today, a 2018 Ford car will have a 12A650 computer part number.
Google: F47F-12A650 4.0l
1994 Mazda B-4000 used same computer, 4.0l but still need to match trans
The last numbers(after 12A650) vary, they are the firmware and software versions, Ford never released a decoder for these numbers/letters
There will also be a larger STAMPED numbers/letters on the label, thats the Final software version loaded on to computer when vehicle was assembled
It all doesn't need to match exactly, the last numbers/letters that is
1994, 4.0l engine, manual or auto trans are the big ones, 1993 will work
EGR or NO EGR is also important, only Calif. 4.0ls had EGR
4x4 didn't matter in 1994 it used a separate module that isn't connected to computer
The EEC-IV computer in the 1994 and older Rangers generally didn't have any problems, but what could happen is that one or more of the 3 Blue capacitors on the circuit board could leak after 20+ years.
These can be changed, not too hard and costs under $5
Read here on that: http://support.moates.net/capacitor-...-ford-a9l-ecm/
A9L is an EEC-IV computer, just different software for V8 engine
Last edited by RonD; Mar 8, 2018 at 11:23 AM.
Welcome to the forum
Most auto parts stores can order them, on-line parts also usually list them
1994 4.0l matters
4x4 doesn't matter in 1994
Manual or automatic trans does
Part number will start like this: F47F-12A650
F4 = 1994
7F = Ranger electric
12A650 = Fords generic part number for ALL engine computers, still used today, a 2018 Ford car will have a 12A650 computer part number.
Google: F47F-12A650 4.0l
1994 Mazda B-4000 used same computer, 4.0l but still need to match trans
The last numbers(after 12A650) vary, they are the firmware and software versions, Ford never released a decoder for these numbers/letters
There will also be a larger STAMPED numbers/letters on the label, thats the Final software version loaded on to computer when vehicle was assembled
It all doesn't need to match exactly, the last numbers/letters that is
1994, 4.0l engine, manual or auto trans are the big ones, 1993 will work
EGR or NO EGR is also important, only Calif. 4.0ls had EGR
4x4 didn't matter in 1994 it used a separate module that isn't connected to computer
The EEC-IV computer in the 1994 and older Rangers generally didn't have any problems, but what could happen is that one or more of the 3 Blue capacitors on the circuit board could leak after 20+ years.
These can be changed, not too hard and costs under $5
Read here on that: http://support.moates.net/capacitor-...-ford-a9l-ecm/
A9L is an EEC-IV computer, just different software for V8 engine
Most auto parts stores can order them, on-line parts also usually list them
1994 4.0l matters
4x4 doesn't matter in 1994
Manual or automatic trans does
Part number will start like this: F47F-12A650
F4 = 1994
7F = Ranger electric
12A650 = Fords generic part number for ALL engine computers, still used today, a 2018 Ford car will have a 12A650 computer part number.
Google: F47F-12A650 4.0l
1994 Mazda B-4000 used same computer, 4.0l but still need to match trans
The last numbers(after 12A650) vary, they are the firmware and software versions, Ford never released a decoder for these numbers/letters
There will also be a larger STAMPED numbers/letters on the label, thats the Final software version loaded on to computer when vehicle was assembled
It all doesn't need to match exactly, the last numbers/letters that is
1994, 4.0l engine, manual or auto trans are the big ones, 1993 will work
EGR or NO EGR is also important, only Calif. 4.0ls had EGR
4x4 didn't matter in 1994 it used a separate module that isn't connected to computer
The EEC-IV computer in the 1994 and older Rangers generally didn't have any problems, but what could happen is that one or more of the 3 Blue capacitors on the circuit board could leak after 20+ years.
These can be changed, not too hard and costs under $5
Read here on that: http://support.moates.net/capacitor-...-ford-a9l-ecm/
A9L is an EEC-IV computer, just different software for V8 engine
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