What does p0300 code mean on the chevy equinox?

When You get a check engine light in Your Chevy Equinox the first thing that You should do is try to get off the road. Driving with a check engine light on can cause more damage to Your engine if there are any damaged components. Once You have stopped then You can use an OBD II scan tool on Your vehicle to determine what the problem is. If You have a code P0300 then that means that a mIS Fire was detected in the engine. That could be caused by a number of things including low quality fuel, spark plug problems, or air intake problems. It is best to check the ECU for any other codes to help narrow down the cause.