Kross Humpert

Mine had the same problem. It’s the engine oil pressure switch gauge. It’s like 50$ part from online, which you want to make sure the kit includes the sensor AND the filter screen for it, otherwise you’ll get the same code in no time. The worst part is the labor for it. It’s from build up of carbon in the engine that “gunks” up the oil and gets trapped on the filter sending a code for “stuck in off position”. I looked around and older GM’s you could have done the labor yourself though kinda tough. The 14 like I have, it just so happens to be inside the engine, right below the headers somewhere, which only makes the labor that much more expensive. Overall I’d look around at pricing on replacing the sensor and filter. Bulk of price is almost completely labor related. Mine would come on and off, once I did some work on the truck luckily it just so happened to free up and now is never on. Most people with this problem will see their check engine light come on and off(on more often than off). Hope this could get some insight.