retieving engine codes for diagnostics-if someone can help - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 08-22-2004, 08:46 PM   #1
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Default retieving engine codes for diagnostics-if someone can help

Hi I am new here.

Anyway we decided to work on our family ride the 1992 SE 'bonny'.

I own two forced induction Daytonas and can pull my engine codes from the comp by going through a series of on/off turns with the key to get the diagnostics going.

Can someone tell me the procedure to do ths with the bonneville so I can look at what the ECM is declaring as fault(*). I would assume that it would be a flashing code using the 'check engine' signal. I need the sequence to start the diagnostic scan by the car computer.

I tried to do a search on this forum but to no avail. So if you would point me in the right direction with links for the info I would appreciate it.

Also any upgrade links-how to'* on the N/A 3.8 as well as the supercharged 3.8 would be helpful-this will help me decide if I really want to get stuck into either engine and what'* available out there.

Thx for any help in advance.

Feel free to post links I have no problem wading through sites ferreting stuff.
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Old 08-22-2004, 08:52 PM   #2
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Default Re: retieving engine codes for diagnostics-if someone can he

You'll find the diagnostic procedure in Techinfo, Tech Know-how. Ignore code 58 if you get it, that'* a bug in the 92 programming, but won't set off a light.


You'll also find an article in Techinfo detailing how the upgrade from L27 to L67 isn't really possible or practical. They are in fact, two totally different animals from the ground up. Sell the SE (soon....you have the EGR-less 92 that burns valves, read more in the sticky post in the 92-99 section), and use that money to pay down the SSEi of your dreams.
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Old 08-22-2004, 10:49 PM   #3
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I have to ....

Quote:
Now locate terminals "A" & "B", the 2 uppermost right-hand terminals, "A" is the one the right. You must use a short wire to ground out these terminals, or a hairclip, paperclip, or something similar. Short the terminals with the ignition off, then turn the ignition to "on" but do not start the car.
That'* a POS engineering if I ever saw any from GM. There is no other way to retrieve the codes other than this? Really I am not out to slam these cars we have owned this one for 10 years now.

Car has run with no burnt valves and passed air care testing every year for 8 years now and clocked 300,000 kms. It all depends on how you maintain a car.

SSEI will probably not be part of my dreams unless it'* as simple to work on and preforms just as well as an R/T IROC 1993 or a TC headed 1992-1993 R/T. If they can't do that then it'* not worth the effort.
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Old 08-22-2004, 10:55 PM   #4
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Quote:
Originally Posted by Biz
I have to ....

Quote:
Now locate terminals "A" & "B", the 2 uppermost right-hand terminals, "A" is the one the right. You must use a short wire to ground out these terminals, or a hairclip, paperclip, or something similar. Short the terminals with the ignition off, then turn the ignition to "on" but do not start the car.
That'* a POS engineering if I ever saw any from GM. There is no other way to retrieve the codes other than this? Really I am not out to slam these cars we have owned this one for 10 years now.

Car has run with no burnt valves and passed air care testing every year for 8 years now and clocked 300,000 kms. It all depends on how you maintain a car.

SSEI will probably not be part of my dreams unless it'* as simple to work on and preforms just as well as an R/T IROC 1993 or a TC headed 1992-1993 R/T. If they can't do that then it'* not worth the effort.
The SSEi will be more trouble-free than the NA models. And you WILL have burnt valves. It'* really just a matter of time, and has nothing whatsoever to do with how well you maintain your car. It'* EGR-less.
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Old 08-22-2004, 11:22 PM   #5
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I am not trying to start an arguement here but that is defnitely POS engineering from GM.

I am sure you enjoy your cars but something that any driver should be able to access in order to keep their car tuned with no problems being made difficult is really non defensible.


Other Car companies provided this ease of diagnostics since 1984 on their cars-people did not have to jump or ground short anything all they did was turn the ignition key in a sequence of 'on/off' 3-4 times and then presto you get engine codes come up.


Like I said before we have owned this car for 10 years and it'* problem free it'* done its job well that it was built for. -No complaints here.


On the other hand like I said I am new here as well and tuning one to preform the way I expect a modded car to is another matter if the cars cannot be maintained simply.

Thx for the input anyway.
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Old 08-22-2004, 11:44 PM   #6
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Heh, that'* the simple part of dealing with the ECM... Wait til he wants a chip LOL....
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