Absolutely not. The engine computer is able to detect well over 2,000 defects and will set a diagnostic fault code related to each of those defects. About half of them refer to things that could adversely affect emissions. Those are the codes that turn on the check engine light. For the least serious problems, the check engine light will turn off while you are driving, if the problem is intermittent and stops acting up. If the problem is a little more serious, but is intermittent and goes away, the light will stay on until you stop and restart the engine.
Of all the things the engine computer monitors, how long since the last oil change is not one of them.
Sunday, May 28th, 2017 AT 8:16 PM