1990 Nissan Pickup (D21) Q&A
1990 Nissan Pickup (D21) Question: Would a faulty catalytic converter cause the check engine light to come on?
I know CA emission standards are higher than most of the other states so what they say is possible. My guess the state has a board that oversees that program and should have someone that can anwser questions and concerns that you may have. - milesauto