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Old 07-04-2006, 09:40 AM
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Which OBD system do I have?

I have an 88 Fiero GT. I want to buy a code reader for it. Which OBD system do I need? Thank you!

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Old 07-04-2006, 09:56 AM
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GM started with OBD-1 in 1982. Don't know if all GM models started that year with OBD-1. OBD-2 didn't come along until 1996. OBD-1 cables were not standardized across manufacturers, so make sure you get the cable for GM cars if you purchase or use a code scanner.
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Old 07-04-2006, 03:32 PM
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I think that you're thinking 1992 for OBD-1... not '82. Your computer is like the one in my '89 GMC pickup. No code reader required... jumper the B terminal of the ALDL connector to Ground and the Service Engine Soon light will blink out your codes. It will blink "12" 3 times, then the codes 3 times, then :12" again 3 times. Do this with the ignition ON and the engine not running.
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Old 07-04-2006, 03:38 PM
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yep. OBD1 can also be jumped to read code much the same way.
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Old 07-04-2006, 04:26 PM
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Thanks!

Cool, thanks!
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Old 07-04-2006, 06:46 PM
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Quote:
I think that you're thinking 1992 for OBD-1... not '82
================================================== ========
No, I believe cucumber (what a strangely perverted name) is thinking right.
OBD1 started in 1982.
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Old 07-04-2006, 07:22 PM
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No perversion here at all LOL!! If you knew my last name, you'd understand in a heartbeat!!

And OBD-1 did start in 1982 for GM and Ford (I believe), and 1983 for Mopar. Again, not sure if all models for each company started that year, but I have to believe GM had their entire lineup using this rather loosely defined standard by 1988, so the Fiero mentioned in the initial post should be covered. You could also read out the codes on GM through the CEL as late as 1994, if not later.
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Old 07-04-2006, 08:29 PM
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so dont be shy ,give, what syour last name
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Old 07-05-2006, 10:16 AM
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The jumper method doesn't work on LT1 OBD-1 PCMs like the one in my '94 Impala SS... even if the FSM says that it does. I use DataMaster on my laptop PC with a AKM adapter cable.
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