I am trying to get my car to pass smog. The only mil that does not pass is the catalyst. I replaced the one that is just under the intake manifold and all new o2 sensors. I have driven the car well over four hundred miles now and the check engine light does not come on (no DTC). What could be the problem?
have the same problem?
Sunday, November 6th, 2016 AT 1:36 AM