Often, the Check Engine light illuminates due only to a minor momentary glitch somewhere. Like a loose gas cap or similar minor problem. The light can be turned off and the stored codes cleared by disconnecting the battery for a minute or two. The light will then be off. If the light turns back on, then it's time to have the code retrieved which can point you towards the possible problem.
A forum community dedicated to Jeep Wrangler owners and enthusiasts. Come join the discussion about reviews, performance, trail riding, gear, suspension, tires, classifieds, troubleshooting, maintenance, for all JL, JT, JK, TJ, YJ, and CJ models!