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What ecu is this?

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Old 07-25-2017, 06:35 AM
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What ecu is this?
Found a junked vette at the yard with what I think is a remain ecu. The cover was sand blasted. I don't know what I am looking at for internals wise to tell me what it is. I have not picked it up yet but I want to make sure it would work for my tuning needs. I did get the plugs and prom. Thanks for any help.
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Old 07-25-2017, 08:24 AM
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Re: What ecu is this?
Looks to be the 1227165 MAF TPI ECM. Even as a re-man there should be a part number on the top of the case.

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Old 07-25-2017, 08:12 PM
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Re: What ecu is this?
It is an 8259 ecu. Is that any good?
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Old 07-25-2017, 08:25 PM
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Re: What ecu is this?
Is there anything else I need to go back for to pull out of the vette for this conversion?
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Old 07-25-2017, 08:27 PM
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Re: What ecu is this?
Originally Posted by HellHound
It is an 8259 ecu. Is that any good?
Superseded 165
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Old 07-25-2017, 08:28 PM
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Re: What ecu is this?
Originally Posted by HellHound
Is there anything else I need to go back for to pull out of the vette for this conversion?
What conversion are you doing ?
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Old 07-25-2017, 09:41 PM
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Re: What ecu is this?
Drop in the new ecu in place of the one I have in my 85 T/A
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Old 07-25-2017, 10:09 PM
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Re: What ecu is this?
It is not directly compatible with 85. No other year is compatible with 85. If you change to an 86+ MAF (and it may need other changes also - I'm not sure) it could be made to work.

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Old 07-26-2017, 05:59 PM
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Re: What ecu is this?
Originally Posted by HellHound
Drop in the new ecu in place of the one I have in my 85 T/A
https://www.eecis.udel.edu/~davis/z28/ECMs/85to86.txt
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