LT1-LT4 Modifications 1993-97 Gen II Small Block V8

OBD1 code pulling?

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Old Dec 26, 2007 | 07:32 PM
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Default OBD1 code pulling?

alright well i went to auto zone today to get some codes pulled thinking they could get them from an obd1 car... they cant here for some reason... so they told me to do the paper clip in the top right two slots deal and count the check engine flashes and all that stuff... well im not wanting to shove a paper clip into a electrical fitting because that doesnt sound too safe on the connector, and i tried with some wire, but for some reason all the light did was flash like 100 times until i pulled it out cuz in the book it shows that there are only like 99 codes or sometin like that... so i was just wondering if there was a tutorial on how to do this because i want a description that is error-less... especially while working with the computer of my car if you know what i mean...
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Old Dec 26, 2007 | 07:46 PM
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the jumper wire is only used on eprom cars. Since yours is 94 it can be scanned. The people at auto zone just didnt know what they are doing. Go to a normal shop and you can get the codes scanned.
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Old Dec 26, 2007 | 07:48 PM
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lol what do you consider a normal shop? like actual mechanic that will prob charge me out the *** for this or like advance auto or oreillys or what?
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Old Dec 26, 2007 | 07:50 PM
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you can only do the paper clip trick with 1993 f-bodies. you either have to buy a obd1 scanner from a parts store or find someone who has one such as a mechanic
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Old Dec 26, 2007 | 07:57 PM
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well sounds like im about **** out of luck...
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Old Dec 26, 2007 | 07:57 PM
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A regular mechanic. And most will not charge you out the *** for it for the simple reason that they want your business. If it wasnt such a trip I would just tell you to come to warsaw and I could scan it for you, but thats a hell of a trip to scan the pcm.
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Old Dec 26, 2007 | 08:03 PM
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well i know the first time i took it to get it fixed... like when i first got the car and it had a bad ac compressor... the guy scanned it and said that one of the o2 sensors were goin bad... so do i really need to get them pulled, or could i just do trial and error until i get the bad one out?
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Old Dec 26, 2007 | 08:08 PM
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You could just put both O2's in and see if that fixes it. Although that might not be the only code in it.
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Old Dec 26, 2007 | 08:10 PM
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Originally Posted by squeals99
well i know the first time i took it to get it fixed... like when i first got the car and it had a bad ac compressor... the guy scanned it and said that one of the o2 sensors were goin bad... so do i really need to get them pulled, or could i just do trial and error until i get the bad one out?

you will be guessing for ever. it could be anything.


i think you can get a obd1 scanner from autozone for like $100 bucks if not less. i just bought a obd2 scanner for $50 bucks( the cheapest one they had)just check around the local stores and ask if they sell one.
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Old Dec 26, 2007 | 08:10 PM
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im also too poor to replace both at the same time lol... i may replace the other one later, but im kinda hard up for money right now anyway... even though my birthday is tomorrow and i may get a little bit... but i would like to get a socket and wrench set soon with my xmas money, and ive already had to order a new headlight gear, new rear shocks, and i ordered gauges and overlays with most of my xmas money...
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Old Dec 26, 2007 | 08:29 PM
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well ive only had the car a couple months also... and when he pulled the codes he told me what all came out... and it was the AC compressor and then an o2 sensor code... so im guessin im not throwin any other codes now... or at least id hope not... but i may stop by there tomorrow and ask to see if he can scan it again
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Old Dec 26, 2007 | 08:33 PM
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If you get it re scanned, try to write down the code numbers and what they are so we can help out with any other codes that might have come up.
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Old Dec 26, 2007 | 08:39 PM
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alright well i also have the haynes book that has all the codes... but ya ill try to get it scanned and see what goes on
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