upgrading ECM questions
Thread Starter
Le Mans Master
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
upgrading ECM questions
Since it looks like I am going to be changing intakes on my car I am looking at upgrading the ECM to the newer version for better tuning purposes. I have tried the search in both Tech and scan & tune but found nothing. What I was looking for is a thread from a while back where someone listed very explicit instructions on repinning the '85 wiring to the newer ECM. He listed the procedure wire by wire, colors etc.
When I upgrade, will I be able to use my AutoXray 2000? Would i just enter the year make & model of the ECM to do a scan?
When I upgrade, will I be able to use my AutoXray 2000? Would i just enter the year make & model of the ECM to do a scan?
Le Mans Master
Joined: Aug 2000
Posts: 8,838
Likes: 31
From: Australia
Oldy but goody from Mike Davis way back
http://www.eecis.udel.edu/~davis/z28/ecm_swap/
Actually I am surprised this is still available on the original server.(last updated '99 )
Many of the old links are now defunct
Would be nice if someone with the skills could extract it and repost it on here
Mike was one of the best for documenting what he did in detail and with great pics
'165 MAF to '730 SD swap
http://www.eecis.udel.edu/~davis/z28/ecm_swap_730/
Porting Hi flow TPI intake
http://www.eecis.udel.edu/~davis/z28...ebase/porting/
http://www.eecis.udel.edu/~davis/z28/ecm_swap/
Actually I am surprised this is still available on the original server.(last updated '99 )
Many of the old links are now defunct
Would be nice if someone with the skills could extract it and repost it on here
Mike was one of the best for documenting what he did in detail and with great pics
'165 MAF to '730 SD swap
http://www.eecis.udel.edu/~davis/z28/ecm_swap_730/
Porting Hi flow TPI intake
http://www.eecis.udel.edu/~davis/z28...ebase/porting/
Last edited by rodj; Sep 3, 2012 at 10:24 PM.
Melting Slicks
Joined: Mar 2008
Posts: 2,141
Likes: 76
From: Santa Maria, CA
I found the article I think you are looking for but it wasn't on the Forum. As I recall, I did a search on Google for "1227165 ECM upgrade" and the article came up. It was an upgrade done to an 85 Z28 Camaro.
Instructor
Joined: Sep 2006
Posts: 138
Likes: 0
From: toledo ohio
this is what i used:
http://forums.corvetteforum.com/c4-s...m_id=82&arch=1
you can use the extra pins from c12, d16, or c15 for your new d12 connection.
very simple and easy to do.
i also started with the arap bin
started right up first try
http://forums.corvetteforum.com/c4-s...m_id=82&arch=1
you can use the extra pins from c12, d16, or c15 for your new d12 connection.
very simple and easy to do.
i also started with the arap bin
started right up first try
Thread Starter
Le Mans Master
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
this is what i used:
http://forums.corvetteforum.com/c4-s...m_id=82&arch=1
you can use the extra pins from c12, d16, or c15 for your new d12 connection.
very simple and easy to do.
i also started with the arap bin
started right up first try
http://forums.corvetteforum.com/c4-s...m_id=82&arch=1
you can use the extra pins from c12, d16, or c15 for your new d12 connection.
very simple and easy to do.
i also started with the arap bin
started right up first try
Last edited by Midnight 85; Sep 4, 2012 at 12:28 AM.
Instructor
Joined: Sep 2006
Posts: 138
Likes: 0
From: toledo ohio
i don't know about your scanner. i use tunerpro rt along with the autoprom.
i can tell you that i data logged with the 870 and the 165- big difference between getting data every second vs. many times a second.
i used a junkyard 165 computer that came with the prom.
i have since installed a remote chip socket to make chip swaps in literally 5 seconds.
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Thread Starter
Le Mans Master
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
i worked out each pin swap on paper a few times so i'd get it right.
i don't know about your scanner. i use tunerpro rt along with the autoprom.
i can tell you that i data logged with the 870 and the 165- big difference between getting data every second vs. many times a second.
i used a junkyard 165 computer that came with the prom.
i have since installed a remote chip socket to make chip swaps in literally 5 seconds.
i don't know about your scanner. i use tunerpro rt along with the autoprom.
i can tell you that i data logged with the 870 and the 165- big difference between getting data every second vs. many times a second.
i used a junkyard 165 computer that came with the prom.
i have since installed a remote chip socket to make chip swaps in literally 5 seconds.
I guess I will leave it up to whoever tunes it whether the ECM gets swapped or not.
Thread Starter
Le Mans Master
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
Please don't think I don't appreciate your input, I do. I just don't want to be buying all the things it takes to do the changes. If I can't do it that way then I will leave the TPI on it & forget about it.
Just a for instance, I don't have a laptop nor do I want one. I wouldn't even know how to begin doing tuning with a laptop and I have no wish to learn. I guess I should stick to old school hot rodding.
Just a for instance, I don't have a laptop nor do I want one. I wouldn't even know how to begin doing tuning with a laptop and I have no wish to learn. I guess I should stick to old school hot rodding.
Team Owner
Joined: Mar 2000
Posts: 83,384
Likes: 88
From: Boston, MA
Depending on what you want to spend there are also things like the Holley Avenger EFI system, which like most newer EFI systems has self-tuning built in and completely replaces your ECM for engine control. They sell TPI and main power harnesses which make the thing essentially plug-and-play. You can purchase a little hand-held controller so a laptop isn't necessary and just answer a few simple questions about your engine to get it going.
I've just started looking into getting their Dominator EFI system for my '87 which I'd use my laptop on, but the software in the box is identical to the software the Avenger and HP models use.
I've just started looking into getting their Dominator EFI system for my '87 which I'd use my laptop on, but the software in the box is identical to the software the Avenger and HP models use.
Racer
Joined: Sep 2006
Posts: 289
Likes: 0
From: Newark DE
Oldy but goody from Mike Davis way back
http://www.eecis.udel.edu/~davis/z28/ecm_swap/
Actually I am surprised this is still available on the original server.(last updated '99 )
Many of the old links are now defunct
Would be nice if someone with the skills could extract it and repost it on here
Mike was one of the best for documenting what he did in detail and with great pics
'165 MAF to '730 SD swap
http://www.eecis.udel.edu/~davis/z28/ecm_swap_730/
Porting Hi flow TPI intake
http://www.eecis.udel.edu/~davis/z28...ebase/porting/
http://www.eecis.udel.edu/~davis/z28/ecm_swap/
Actually I am surprised this is still available on the original server.(last updated '99 )
Many of the old links are now defunct
Would be nice if someone with the skills could extract it and repost it on here
Mike was one of the best for documenting what he did in detail and with great pics
'165 MAF to '730 SD swap
http://www.eecis.udel.edu/~davis/z28/ecm_swap_730/
Porting Hi flow TPI intake
http://www.eecis.udel.edu/~davis/z28...ebase/porting/
Sounds like someone adapted the info successfully for the C4, but if the OP or anyone has questions, I haven't died yet...
I still have my '85 Z28 and a '92 C4 currently getting a LS3 swap..
Mike
Thread Starter
Le Mans Master
Joined: May 2004
Posts: 5,866
Likes: 60
From: Hellinois
Finalist 2020 C4 of the Year - Modified
Mike, you can be sure I will be bugging you if it turns out I need any help, and I am grateful I can turn to you and the many others here. I thought I was just about done asking for help since my car is running so good but then the performance bug bit me again. I have found during my 50 some years of hot rodding that even with all the antibiotics I have had to take for various reasons, nothing will kill that darn bug.
Race Director
Joined: Jun 1999
Posts: 14,924
Likes: 9
From: Merritt Ils Fl
Several years ago I had the bright idea of putting together some kits with instructions for this swap. Had a line on 165 ECMs for $20 a copy. Bypass surgery and new knees got in the way. Kinda wish I had taken another look.
Pro
Joined: Jul 2002
Posts: 703
Likes: 0
From: Milwaukee Wi
Quote: i have since installed a remote chip socket to make chip swaps in literally 5 seconds.
dynamicefi is flash based. Creates new .bins at completion of datalog. Called VE Learn. No chips to lose connection in zif socket. Holds multiple .bins. Flash in a bin in a few seconds.
did you look at site?
dynamicefi is flash based. Creates new .bins at completion of datalog. Called VE Learn. No chips to lose connection in zif socket. Holds multiple .bins. Flash in a bin in a few seconds.
did you look at site?