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Join Date: Aug 2001
Location: midwest
Posts: 40,329
Quote:
Originally Posted by craigster59 View Post
The wife’s 2002 Camry loved nothing better than a new gas cap to get rid of the CEL.
CEL (check engine light) is OBD1.
Pre-1996.
(There was a 1994-1995-1996 overlap with Canadian made vehicles IIRC. My 1995 Legacy was OBD2.)

MIL (Malfunction Indicator LampLight) is OBD2.
Anything after 1996.
It incorporates everything including transmission powertrain, intentionally self-testing systems by activating EGR to look at O2 sensor response, ABS sensors, and all the nonsense.

The drive cycles have to complete over time. Start-stop. Freeway. WOT. Cruse. Braking. All of it. It is probably different for different mfrs.
The short-term long-term fuel curves also have to be set.

MIL is the correct terminology to use.
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Last edited by john70t; 10-20-2020 at 07:26 PM..
Old 10-20-2020, 07:18 PM
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