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85 computer switch to an 89

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Old Dec 14, 2001 | 08:43 PM
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Willycool
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From: Scarbrough, Ontario, Canada
Default 85 computer switch to an 89

Hey everyone!

I would like to switch my 85 computer and wiring harness to an 89 computer and harness. I would like to know if anyone has attempted this and if so, can you offer my some advice.

Tx

Willycool :seeya
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Old Dec 14, 2001 | 08:45 PM
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JAKE
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Default Re: 85 computer switch to an 89 (Willycool)

Yep; it very doable. There is a site that has all the step by step info you need, but I lost the URL when I installed a new harddrive.

Maybe someone will post it for you. If not check the archives.

Jake
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Old Dec 14, 2001 | 09:11 PM
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Default Re: 85 computer switch to an 89 (JAKE)

http://www.eecis.udel.edu/~davis/z28/ecm_swap/
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Old Dec 15, 2001 | 03:56 PM
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Default Re: 85 computer switch to an 89 (Willycool)

I know this doesn't answer your question, but I was in the same shoes a couple of months ago.

Why are you doing this? I updated because I was pissed that Diacom didn't show much information that was useful when tuning. I was going to do the 85 to 89 update just like you.

Bowtye8 (Dennis) and Mojo (Chris) suggested that I go to the 90-92 Camaro ECM, which is identical to the 90-91 Corvette ECM so you can use a Corvette Calibration on it. I am glad they did, because I feel for my purposes, which including tuning my own chips, that this is the most worthwhile investment I have ever made. The price of the Burnoff and MAF relays you will need will be more than the price of a new MAP sensor, so if cost was prohibitive, this would offset it. Also, you need one more computer connector, which can be found at any junkyard for $2.00 in my case.

For details on this, go to http://forums.corvetteforum.com/zerothread?id=119460 It is read only, but I might end up starting up a new one if the ECM/PCM section ever gets started up here.

I know I didn't answer your question, but it all depends on what you want to do. Like I said, I would never ever ever go back!
:cheers: -Matt-
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