ECM Issues - ZR-1 Net Registry Forums

ZR-1Mike · 10-05-2017

Hi all! I started having some "unrelated" problems a few weeks ago concerning the secondary injectors and fuel pumps and got that sorted out and today I had a top flight Corvette tech look at the car and he determined that I need to replace the ECM. Now we're on a search for an ECM for my '91 though I know that they're nearly impossible to find. Has anyone here had theirs refurbished and if you have can you recommend a good company?
I'd again appreciate any help from out there!

Mike

XfireZ51 · 10-05-2017

Quote:

Originally Posted by ZR-1Mike

Hi all! I started having some "unrelated" problems a few weeks ago concerning the secondary injectors and fuel pumps and got that sorted out and today I had a top flight Corvette tech look at the car and he determined that I need to replace the ECM. Now we're on a search for an ECM for my '91 though I know that they're nearly impossible to find. Has anyone here had theirs refurbished and if you have can you recommend a good company?
I'd again appreciate any help from out there!

Mike

See if u can swap urs out for someone else's first. On what basis did ur top flight tech determine that u had a bad ECM?

RussMcB · 10-06-2017

Quote:

Originally Posted by XfireZ51

See if u can swap urs out for someone else's first.

That's the first that popped into my head, too.

-=Jeff=- · 10-06-2017

If you find you have issues with your ECM contact Marc Haibeck. I believe he had a couple repaired

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Ccmano · 10-06-2017

What problem are you having that they feel the ECM needs changed out?
H

Ccmano · 10-07-2017

Looks like Rock Auto has one. Remember all year ZR-1 units work in all cars per Marc Haibeck.

https://www.rockauto.com/en/catalog/...computer),2896

H

XfireZ51 · 10-07-2017

Quote:

Originally Posted by Ccmano

Looks like Rock Auto has one. Remember all year ZR-1 units work in all cars per Marc Haibeck.

https://www.rockauto.com/en/catalog/...computer),2896

H

They're Out of Stock. Thought it was too good to be true.

Ccmano · 10-07-2017

How about this one...

https://www.rockauto.com/en/catalog/...computer),2896

H

-=Jeff=- · 10-09-2017

Oh I guessed that right.. out of stock. Bummer

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ZR-1Mike · 10-11-2017

Thanks for the advise and sorry it took me so long to get back but I had to go out of town for a few days. It turned out to be the PROM which had gone south. I had a Hiabeck PROM from several years ago before some engine work. We plugged it in and the poor running issues vanished. The old girl is back and bad assed! I did find a used ECM but the seller couldn't tell me a thing about it other than it came out of a running ZR. I also found that Volunteer Corvettes offers refurbishing services for our ECM.

You all did come through for me again and I can't say how much I appreciate you!! Thanks!

10-05-2017	#1
ZR-1Mike Join Date: Jan 2006 Location: SE Oklahoma Posts: 69	ECM Issues Hi all! I started having some "unrelated" problems a few weeks ago concerning the secondary injectors and fuel pumps and got that sorted out and today I had a top flight Corvette tech look at the car and he determined that I need to replace the ECM. Now we're on a search for an ECM for my '91 though I know that they're nearly impossible to find. Has anyone here had theirs refurbished and if you have can you recommend a good company? I'd again appreciate any help from out there! Mike

10-06-2017	#4
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,161	Re: ECM Issues If you find you have issues with your ECM contact Marc Haibeck. I believe he had a couple repaired Sent from my iPhone using ZR-1 Net Registry __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978

10-06-2017	#5
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,843	Re: ECM Issues What problem are you having that they feel the ECM needs changed out? H

10-07-2017	#6
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,843	Re: ECM Issues Looks like Rock Auto has one. Remember all year ZR-1 units work in all cars per Marc Haibeck. https://www.rockauto.com/en/catalog/...computer),2896 H

10-07-2017	#8
Ccmano Join Date: Jun 2006 Location: Sparks, NV Posts: 2,843	Re: ECM Issues How about this one... https://www.rockauto.com/en/catalog/...computer),2896 H

10-09-2017	#9
-=Jeff=- Join Date: Jul 2007 Location: Bartlett, IL Posts: 7,161	Re: ECM Issues Oh I guessed that right.. out of stock. Bummer Sent from my Nexus 7 using ZR-1 Net Registry mobile app __________________ 1990 Corvette ZR-1 #1051 Watson Headers (2" Primary) - Flowmaster Cats - Borla Catback Late Model IH - Plenum Coilovers - 4.10s Shelby Series 1 - Wilwood Brakes Custom Interior NCM Lifetime Member #978

10-11-2017	#10
ZR-1Mike Join Date: Jan 2006 Location: SE Oklahoma Posts: 69	Re: ECM Issues Thanks for the advise and sorry it took me so long to get back but I had to go out of town for a few days. It turned out to be the PROM which had gone south. I had a Hiabeck PROM from several years ago before some engine work. We plugged it in and the poor running issues vanished. The old girl is back and bad assed! I did find a used ECM but the seller couldn't tell me a thing about it other than it came out of a running ZR. I also found that Volunteer Corvettes offers refurbishing services for our ECM. You all did come through for me again and I can't say how much I appreciate you!! Thanks!