Orginal ECM
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Joined: Dec 2008
Posts: 71
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From: TX
Orginal ECM
My '91 is running on the orginal ECM. It is a realy low mileage car. It was in storage for some time. I am going to start driving it more now. Question is should I purchase a back up ECM and keep it in the car with. I have heard bad things about them drying without notice. Any thoughts?
Thanks
Thanks
Race Director
Joined: Sep 2000
Posts: 17,298
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From: The Top of Utah
Originally Posted by mkrail@flash.net
Question is should I purchase a back up ECM and keep it in the car with. I have heard bad things about them drying without notice.
Thanks
Thanks
RACE ON!!!
Le Mans Master
Joined: Dec 2000
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From: San Diego, Ca
Well, I've been through 4 or 5 in 60,000 miles, but I don't have a '90 and at least 3 were replaced under the original warranty. My other GM's have fared better, but then the warranty has gotten progressively longer (it's like 10 years out here now) on the later years and I think a '95 Gran Prix was the last GM I actually got a warranty ECM replacement for and that was when it was 6 or 7 years old and I wasn't going to argue with the Dealer (they were wrong - it didn't fix the problem). I've accumulated spare parts because I've replaced the wrong stuff unless it's the alternator - speaking of which, I'd be more inclined to purchase that and then keep it in the back (along with a breaker bar and 10 and 13 mm sockets or box wrenches) - particularly if you plan on taking a trip of 100 miles or so.
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Joined: Dec 2008
Posts: 71
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From: TX
Well, I've been through 4 or 5 in 60,000 miles, but I don't have a '90 and at least 3 were replaced under the original warranty. My other GM's have fared better, but then the warranty has gotten progressively longer (it's like 10 years out here now) on the later years and I think a '95 Gran Prix was the last GM I actually got a warranty ECM replacement for and that was when it was 6 or 7 years old and I wasn't going to argue with the Dealer (they were wrong - it didn't fix the problem). I've accumulated spare parts because I've replaced the wrong stuff unless it's the alternator - speaking of which, I'd be more inclined to purchase that and then keep it in the back (along with a breaker bar and 10 and 13 mm sockets or box wrenches) - particularly if you plan on taking a trip of 100 miles or so.
Yea - a CS144 is next on my list
mine still does ok but at idle it is a little weak, 12.5 v. ECM - i guess i will just risk it unless I find one for a good deal.
Le Mans Master
Joined: Sep 2005
Posts: 6,551
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From: Jenks OK
My '91 is running on the orginal ECM. It is a realy low mileage car. It was in storage for some time. I am going to start driving it more now. Question is should I purchase a back up ECM and keep it in the car with. I have heard bad things about them drying without notice. Any thoughts?
Thanks
Thanks
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Joined: Dec 2008
Posts: 71
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From: TX
I put about 350 miles on it since it was setiting up, so far no fuel pump issues. When it sat up I would try and drive it at least a couple of miles per half year to keep the fluids moving. I did notice a small leak at the master cyl. maybe it will self correct - yea right. I guess if the fuel pump goes it will not give any warning? LOL
