can a 3.9 ecu be used to run a 4.0

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cottom

Post subject: can a 3.9 ecu be used to run a 4.0

Posted: Mon Nov 29, 2010 5:31 pm

Oompa Loompa

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Ride: EA 88 5spd mpi wagon

Location: Lismore/brisbane
NSW, Australia

i am converting my ED to manual and was wondering if i can use the manual ecu out of my EA 3.9

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Lowlane7

Post subject: Re: can a 3.9 ecu be used to run a 4.0

Posted: Mon Nov 29, 2010 5:51 pm

Getting Side Ways

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Ride: NA Fairlane, DC LTD

Location: Alice Springs
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Not too sure about the 3.9/4.0 differences,

But as a note for your ECU, I converted my 3.9 to manual and just changed the gearbox loom and it runs fine, I think cos it was before the electric gearbox (the 3 speed auto like the XFs) the computers were the same/similar

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NA Fairlane Build thread:
the-garage-f53/my-fairlane-build-lowlane-t94891.html.
Also in the garage....
AU LTD, DC LTD, and Lowlane.

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TROYMAN

Post subject: Re: can a 3.9 ecu be used to run a 4.0

Posted: Mon Nov 29, 2010 6:59 pm

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if the 3.9 is mpfi? the ecu will start and run the engine fine( ecu maps are pretty much the same), but you will find that your aircon wont work anymore,( thats if it works) as the ed ecu has the ac (wac) realay triggered and controled by the ed ecu..

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cottom

Post subject: Re: can a 3.9 ecu be used to run a 4.0

Posted: Tue Nov 30, 2010 4:21 pm

Oompa Loompa

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Age: 42

Posts: 35

Joined: 20th Nov 2007

Gallery: 2 images

Ride: EA 88 5spd mpi wagon

Location: Lismore/brisbane
NSW, Australia

thanks for the info fellas i should have stated the 3.9 is mpi

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