I just had my MIL Eliminators installed a few weeks ago and had my inspection done. Everything went well and my check engine light remained off for a few weeks after my inspection. Just a couple days ago my check engine light cut back on and I crawled under my car to see if they came undone. They're still plugged in and zipped tied out of the way, but I still can't figure out why my light is on. Would it be possible that I have a faulty O2 sensor, eliminator, etc.?