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Old 10-30-2011, 10:33 AM
John1397 John1397 is offline
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1981 Buick ECM
I have a 1981 Buick Skylark V-6 with an ECM 1224810 CO and I got a replacement ECM 1224810 FX from a 1981 Omega 4 cylinder what do I need to watch for?

John
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Old 10-30-2011, 03:42 PM
maxwedge maxwedge is offline
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Re: 1981 Buick ECM
You can watch for it most likely not to work, 4 vs 6?
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Old 10-31-2011, 07:31 PM
John1397 John1397 is offline
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Re: 1981 Buick ECM
As far as I can tell both units are the same as it runs fine and is rich on idle and lean on high speed.

John
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Old 10-31-2011, 07:56 PM
maxwedge maxwedge is offline
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Re: 1981 Buick ECM
The same but is has the the wrong fuel curve?, so now what, they are not caibrated the same, no?
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Old 10-31-2011, 08:12 PM
John1397 John1397 is offline
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Re: 1981 Buick ECM
Could be, but at least it runs leaner at high speed than if you have no computer at all this should save fuel as far as timing I have no idea what it actually does.

John
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Old 11-01-2011, 01:19 PM
Tech II Tech II is offline
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Re: 1981 Buick ECM
If the ECM number is same, should be able to use it....just have to transfer the PROM, or in some cases, there may be a knock sensor "module" also to transfer......
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