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What year did OBD II start? 96? and what year is R-134a Freon?
Posted by: Microman
Date: May 21, 2009 03:04PM
I am looking for a new/used car, but always seem to forget what year OBDII began, and what year R-134a began.

Is there any hard and fast rule?

Since I have a 95 with OBDI I believe that is the last year for OBDI.

What about Freon

Thanks.
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Re: What year did OBD II start? 96? and what year is R-134a Freon?
Posted by: Carm
Date: May 21, 2009 03:19PM
95 if i recall correctly. But some manufactures did the conversion before.
Check under hood to be sure 100%

Joe
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Re: What year did OBD II start? 96? and what year is R-134a Freon?
Posted by: C(-)ris
Date: May 21, 2009 03:36PM
Depends on the make and model on the freon. My '94 Sable had 134a.
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Re: What year did OBD II start? 96? and what year is R-134a Freon?
Posted by: testcase
Date: May 21, 2009 05:03PM
I'm pretty sure that all passenger cars had OBD2 as of the 96 model year. My 92 Ford Aerostar minivan still used R12.
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Re: What year did OBD II start? 96? and what year is R-134a Freon?
Posted by: Carm
Date: May 21, 2009 05:09PM
Oops, First answer was for R134a

OBD II. January 1. 1996 [www.obdii.com]

Quote
http://www.obdii.com/background.html
"Where'd it come from?

To combat its smog problem in the LA basin, the State of California started requiring emission control systems on 1966 model cars. The federal government extended these controls nationwide in 1968.

Congress passed the Clean Air Act in 1970 and established the Environmental Protection Agency (EPA). This started a series of graduated emission standards and requirements for maintenance of vehicles for extended periods of time. To meet these standards, manufacturers turned to electronically controlled fuel feed and ignition systems. Sensors measured engine performance and adjusted the systems to provide minimum pollution. These sensors were also accessed to provide early diagnostic assistance.

At first there were few standards and each manufacturer had their own systems and signals. In 1988, the Society of Automotive Engineers (SAE) set a standard connector plug and set of diagnostic test signals. The EPA adapted most of their standards from the SAE on-board diagnostic programs and recommendations. OBD-II is an expanded set of standards and practices developed by SAE and adopted by the EPA and CARB (California Air Resources Board) for implementation by January 1, 1996.

Joe



Edited 1 time(s). Last edit at 05/21/2009 05:10PM by Carm.
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Re: What year did OBD II start? 96? and what year is R-134a Freon?
Posted by: Racer X
Date: May 22, 2009 02:27AM
Quote
C(-)ris
Depends on the make and model on the freon. My '94 Sable had 134a.

so did my '94 Merc Topaz. I think Ford switched a year early.
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Re: What year did OBD II start? 96? and what year is R-134a Freon?
Posted by: illustratton
Date: May 22, 2009 10:09AM
My 94 Jeep has 134a
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Re: What year did OBD II start? 96? and what year is R-134a Freon?
Posted by: mrbigstuff
Date: May 23, 2009 08:10AM
my 1993 Volvo had r134a

and Volvos began OBDII in 1995, don't know about other manufacturers.



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