OBD1 or OBDll How to tell?
Thread Starter
Registered User
Joined: Jun 2003
Posts: 890
From: Dayton, OH
OBD1 or OBDll How to tell?
I have a late 1995 Z, How do I know what computer I have? With my power programmer, I have to use a connector that looks like a trapezoid. Is this OBDll?
Thanks,
Chris Dayton OH
Thanks,
Chris Dayton OH
Registered User
Joined: Nov 1998
Posts: 2,761
From: Louisville, KY
Originally Posted by chrism400
I have a late 1995 Z, How do I know what computer I have? With my power programmer, I have to use a connector that looks like a trapezoid. Is this OBDll?
Thanks,
Chris Dayton OH
Thanks,
Chris Dayton OH
Administrator
Joined: Nov 1998
Posts: 71,110
From: Hell was full so they sent me to NJ
All 95's are OBD-I with OBD-II style 16-pin connector. GM at its finest 
.
For verification, look at the emissions label on the radiator cover. This is the one from Shoebox's 95:
http://shbox.com/1/obd_info.jpg
.For verification, look at the emissions label on the radiator cover. This is the one from Shoebox's 95:
http://shbox.com/1/obd_info.jpg
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Joined: Sep 2002
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Registered User
Joined: Dec 1969
Posts: 27,728
From: Little Rock, AR
Originally Posted by The Cartel
My 95's are the same it's obd1, but if you want confirmation jus look under the car obd2 will have 2 cats and o2's before and after them..
It does not prove if you have OBD-I or II. Case in point: dual cat 1995 Cailfornia emissions cars that are OBD-I.
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Joined: Dec 1969
Posts: 10,745
From: Buffalo, New York
Originally Posted by shoebox
Someone always inevitably says to count the cats, but that only tells you how many cats you have. It does not prove if you have OBD-I or II. Case in point: dual cat 1995 Cailfornia emissions cars that are OBD-I.
It does not prove if you have OBD-I or II. Case in point: dual cat 1995 Cailfornia emissions cars that are OBD-I.Rich
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Joined: Jun 2004
Posts: 52
From: Plainville, CT
Re: OBD1 or OBDll How to tell?
But just for future refrence to anyone who might stumble on this thread.theres a sticker under your hood that tells if your obd 1 or 2, but 95 and below unless your a V-6 your obd 1. V-6 look for the sticker 
Registered User
Joined: Feb 2004
Posts: 350
From: tulsa
Re: OBD1 or OBDll How to tell?
Originally Posted by shoebox
Someone always inevitably says to count the cats, but that only tells you how many cats you have. It does not prove if you have OBD-I or II. Case in point: dual cat 1995 Cailfornia emissions cars that are OBD-I.
It does not prove if you have OBD-I or II. Case in point: dual cat 1995 Cailfornia emissions cars that are OBD-I.I never said to count the cats,Iwas was talking about the o2's before and after
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Joined: Dec 1969
Posts: 27,728
From: Little Rock, AR
Re: OBD1 or OBDll How to tell?
Originally Posted by newWolforder
But just for future refrence to anyone who might stumble on this thread.theres a sticker under your hood that tells if your obd 1 or 2, but 95 and below unless your a V-6 your obd 1. V-6 look for the sticker
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Joined: Jun 2004
Posts: 52
From: Plainville, CT
Re: OBD1 or OBDll How to tell?
Originally Posted by shoebox
Precisely why a link to a pic of that sticker was posted by two people earlier in the thread.
ooops my bad I didn't click the link I was burning somthing while I was reading
Registered User
Joined: Dec 1969
Posts: 27,728
From: Little Rock, AR
Re: OBD1 or OBDll How to tell?
Originally Posted by newWolforder
ooops my bad I didn't click the link I was burning somthing while I was reading
(I'm sure it was a CD)
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