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 Post subject: ecu interchange
PostPosted: Fri Aug 08, 2014 1:16 am 
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Restricted Newbie

Joined: Thu Aug 07, 2014 7:28 pm
Posts: 18
I know its best to match up part numbers, but what if you can't find the right number.
if I have an 89 4g37, do I have to use one for an 89 4g37? or can I use one from other year 4g37s?
do I have to make sure the car the ecu came from had the same trans as mine? etc etc etc.
I've got a chance at picking up an ecu for my car, but its a different part number.


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 Post subject: Re: ecu interchange
PostPosted: Fri Aug 08, 2014 4:54 am 
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The happy administrator
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Joined: Tue Apr 20, 2004 3:20 pm
Posts: 5583
Location: Wisconsin
I would try to find one from the same year. With a manual trans you shouldn't have to worry about any trans control. These early cars aren't too picky on the ecu, one of the upgrades for the 4g15 is to swap in a 4g37 ecu along with the tb/injectors/maf so that'll give you an idea on the interchangeability.

_________________
Had a:
1991 Eagle Summit ES Hatchback - 4g15 12v 5spd
1991 Dodge Colt -4g15 12v 4spd
Have a:
1978 Oldsmobile Cutlass - 468BBO TH350
Round 3:
1990 Dodge Colt-4G63T 5spd


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 Post subject: Re: ecu interchange
PostPosted: Fri Aug 08, 2014 5:47 pm 
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Joined: Thu Aug 07, 2014 7:28 pm
Posts: 18
thanks mecha,
I'm having a bear of a time finding the same numbered ECU.
I got an offer from a forum member to sell their ecu. SUPER clean board, great deal. different number.
It's for the same engine and trans as mine, but the number is listed as 1991-1994 :[


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 Post subject: Re: ecu interchange
PostPosted: Fri Aug 08, 2014 8:03 pm 
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Spends Too Much Time Under The Hood

Joined: Tue May 06, 2014 8:23 pm
Posts: 342
Location: Orlando, fl
Found this: still looking

http://www.ebay.com/itm/Engine-Control- ... 68&vxp=mtr

Have this:
Image
Image

_________________
91 Summit hatch "Sunchaser" R.I.P.
94 Mitsubishi Mirage "4dr"
06 Kawasaki Ninja 250r "daily driver"


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 Post subject: Re: ecu interchange
PostPosted: Fri Aug 08, 2014 8:54 pm 
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The Silent Administrator
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Joined: Wed Dec 24, 2003 3:32 pm
Posts: 9524
Location: Ottawa, ON, Canada
ECU Archive - Engine/Drivetrain (Archive) section of the site


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