Will computer from 92 Explorer fit 93 Ranger

[actbubba]

Will a computer/ECM from a 92 Explorer 4.0 automatic 4x4 work in my 93 Ranger 4.0 4x4 manual?

 

[turbo cat]

No probally not. Im not sure if the pins are even the same but i belie the 4.0 got EGR in 93+ if im correct. Or the egr is vaccum? Either way the ecu will be looking for a missing trans or there may be a way arond that. Someone else will have to chime in.

 

[actbubba]

After doing some checking I don't think the 92 automatic trans ecm will work. Does anyone know if I have to replace it with one from the same year and transmission.

 

[MAKG]

That's always the safest bet. Definitely the same transmission. Model year depends if the calibration or emissions equipment changed.

 

[Ranger44]

There are differences.

With an auto computer the injector strategies are different. You'd lose about 1-2mpg. Depending on how many hills you have, how often you downshift, etc.

I would actually search for a 93' Manual computer.

 

[AllanD]

while you can freely change computers (manual for manual or auto for auto)
on 1990-1992 4.0's, 1993 is an "orphan year", ONLY a 1993 computer is certain to work right.

the 1993's use DIFFERENT injectors and are looking for the signals from TWO HEGO sensors (on in each down pipe leg of the Y-pipe)

There are some 1993 computers that wouldn't work (Cali emmissions)

SOME 1994 computers would work but you'd have to find a Non-SEFI 1994 computer.


The two best computer to use would probably be an "ANY1"
(these are found in 1993 M/T Explorers) or an "ANT1" (same year Ranger)

AD

 

[actbubba]

I purchased one with that number on it for $45. It supposed to fit 93 or 94 Ranger 4.0 manual tranny.

 

[turbo cat]

while you can freely change computers (manual for manual or auto for auto)
on 1990-1992 4.0's, 1993 is an "orphan year", ONLY a 1994 computer is certain to work right.

the 1993's use DIFFERENT injectors and are looking for the signals from TWO HEGO sensors (on in each down pipe leg of the Y-pipe)

There are some 1993 computers that wouldn't work (Cali emmissions)

SOME 1994 computers would work but you'd have to find a Non-SEFI 1994 computer.


The two best computer to use would probably be an "ANY1"
(these are found in 1993 M/T Explorers)

AD

How did the 93s get different injectors. I thought all 4.0s were 19#s

 

[AllanD]

How did the 93s get different injectors. I thought all 4.0s were 19#s

1993-up were 19#.

However the 1990-1992 use the same 14# injectors used on 2.9's
and 3.8liter EFI engines.

the 14# injectors used on virtually all 3.0 engines are
different (different spay pattern)
as are the 14# injectors used on 2.3Lima engines atleast
through the end of 1994.

DO NOT get specifically hung-up on flow rate, ANY of the
injectors used are capable of flowing far more fuel than
the engine can use, what IS VERY IMPORTANT is making
sure that the computer is used with the injectors it is
calibrated for.


The main difference in the 1990-92 injectors and the 1993-up injectors
isn't the flow rate, it's the fact that the early injectors are "stem pintle"
injectors with an annular spray pattern (I.E. a hollow cone) while the later injectors have four smaller ports and make a clover-leaf shaped spray
pattern.

the later injectors are usuall a faster acting "disc pintle" mechanism
Basically ALL 1993 4.0's got the injectors that were REQUIRED for
proper operation of the SEFI that was in 1993 used only on SOME Cali-Emission Explorers.

There's Right & Wrong.

It's a case of "different", not necissarily better.

AD

 

[rickcdewitt]

1993-up were 19#.

However the 1990-1992 use the same 14# injectors used on 2.9's
and 3.8liter EFI engines.



DO NOT get specifically hung-up on flow rate, ANY of the
injectors used are capable of flowing far more fuel than
the engine can use, what IS VERY IMPORTANT is making
sure that the computer is used with the injectors it is
calibrated for.


There's Right & Wrong.

It's a case of "different", not necissarily better.

AD

93 and up are anticlog too.warrantee didn't cover cleaning the 93 and up.

there is a calibration for the 90 4.0 that uses the 14#'ers but most to 92 got the
280-150-766 which is 19# and 93-96 got the 280-150-931.
some 90 2.9l's came calibrated with the 19# 280-150-766 too.

you make a good point though about compatability,the ohm's are different and the cc/min is slightly off.hasen't hurt my mileage or power running the 93 injectors with the 92 cpu

 

[actbubba]

I put the computer in I purchased and the engine is running fine now. thanks for the info and advise...