Topic: will a M/T ecu work with a A/T

[rockn yota]

i have a 22re 4x4 automatic and toyotaboy has one for a 5 sp. will this ECU work for me?

[79coyotefrg]

i dont think so, does the auto have its own ecu??

[toyotaboy]

yes auto has its own ecu mounted under the dash.... i know the computer works in an auto truck converted to 5spd for sure though

[rockn yota [OP]]

i have heard that. Does anyone know if a manual ecu work in a automatic? I can't seem to find an automatic ecu but i can find a pile of manual one's.

[rockn yota [OP]]

does anyone have an automatic and a manual where they could try it and let me know?

[jrock]

They are the same. The Auto has it's own separate computer under the heater console.

[lucky7]

Don't think so but i have an auto one

[toyotaboy]

k let me reiterate since apparently i wasnt clear

an auto computer will run a 5spd truck

a 5spd computer will run an auto truck

the auto uses its own computer mounted under the trim in front of the shifter

the ecu controls the motor not the tranny.

the tranny has its own computer.

[lucky7]

Wasn't sure since they have a different id # and mine say's auto on the cpu

[EarlKann]

X whatever.  Engine should run but you might get a check engine light.

[jrock]

I did the swap and haven't had a thing change. Got the ECU from the donor truck (M/T) and was the same damn thing as mine (A/T).

[91xcab]

I think it will work but the Auto trans won't shift on its own since there will be no computer to control the shifts, so you have to shift it manually. 

[toyotaboy]

I think it will work but the Auto trans won't shift on its own since there will be no computer to control the shifts, so you have to shift it manually. 

once again

THE AUTO HAS ITS OWN ECU

[jrock]

i have a 22re 4x4 automatic and toyotaboy has one for a 5 sp. will this ECU work for me?

I think he already has the AT computer, he just wants to know if another ECU will work. I believe we all said YES.

[toyotaboy]

i didn't quote you if you read it..... i quoted 91excab and corrected the statement...

i just got a wonderful idea.... how about you buy it and if it doesn't work send it back

when it does work keep it

[rockn yota [OP]]

i didn't quote you if you read it..... i quoted 91excab and corrected the statement...

i just got a wonderful idea.... how about you buy it and if it doesn't work send it back

when it does work keep it

Sounds Great, that is exactly what i am going to do

[91xcab]

I know there is a separate computer and I said it won't shift because you will not have that separate computer..... I know I just got done doing an auto to manual swap

[91xcab]

the MAIN computer will work to run the truck but if you do not put in the trans computer the auto won't shift so you will have to manually shift it.

[toyotaboy]

i think you missed the main point... he has an auto.. he needs an ECU - Engine Control .... ive done auto to five speed swaps as well they are not difficult whatsoever in anyway. hes not doing that, he is changing an ECU

re-read it all before you post again to figure out what is going on. he isnt worried about his auto shifting he isnt changing trannies he isnt changing tranny computers.....

also... if you did an auto to five speed swap how did you figure that out? by taking off the auto computer and then trying to drive someplace with the auto still in there? even with the info your talking about you would have had to have done a 5spd to auto swap not the other way around.

read again and figure out the issue before you tell ppl things wont shift. it will all work fine.