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Gen 3 Auto - ECU independent from TCU input/signal?

Gen3 Gen3 ECU

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#1 El_Freddo

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Posted 12 April 2017 - 12:26 AM

G'day all,

I'm hoping someone might be able to answer this for me:

Is the gen3 ECU independent from the TCU? What I mean is if I take an auto ECU and loom to use in a conversion (in a manual) would the ECU freak out due to no TCU signal or connection detected?

I know in the earlier liberties you ground one wire to tell the ECU it's auto or manual (I can't remember which way it is!).

Cheers

Bennie

PS: don't freak out when I say conversion. I know many here would be wondering what lib/impreza/foz it'd be going into or why bother with this amount of work in the first place - if it happens it'll be going into an old skool subi that'll be manual.
These parts would most likely sit on the shelf for a while as I build on the parts required (aka, gather cheap over time).
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#2 Arfreedom

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Posted 13 April 2017 - 08:55 PM

A friend of mine had a automatic B4 and he convert to manual and he had to change the ecu.
Hope this info helps.


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#3 01OBK

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Posted 24 May 2017 - 07:20 PM

Yeah, there's a separate ecu under the drivers side of the dash for the auto box. Was wondering the same when I bought a manual engine ecu in my auto





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