Quote:
Originally Posted by craigster59
The wife’s 2002 Camry loved nothing better than a new gas cap to get rid of the CEL.
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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.