smog

my 95 explorer's check engine light doesn’t come on when key is turned on and motor not running, checked all fuses and all seem good, replaced bulb with known good one, still not working. Motor runs fine.cleaned grounds under hood and one under dash What should I try next?.please help, I need to...

...This includes basic information on getting your vehicle smogged in California..:thumbsup: ...Vehicle Registration and Title Info, (All the links you will need).. http://www.dmv.ca.gov/vr/vr.htm California Engine Swap Rules...:thumbsup...