Hello! I've replaced my PCM, getting one while on a trip to the US from the PCM place in North Carolina. But I live in southern Mexico, hours from a Chevy dealer or a mechanic with the needed scanner to do the relearn. Sometimes my engine light is on with the P0014 code, but often goes off for days, and then comes back on. It's on more than it's off. I need to know if it's worth the trouble to go get it done, a whole day gone plus trying to make sure that the technicians in southern Mexico really will do what I want them to do and not overcharge me. So my question is, What happens if I never get the CASE relearn done, besides having an annoying check engine light on?