The check engine light code was for the throttle position sensor. I unplugged a small piece that looked like a tiny spark plug, from the driver side of my engine block. I forgot and drove the jeep a 1/4 mile and then reconnected it. It was sucking in air. Now my jeep is running poorly. I tried disconnecting the battery to reset it but this did nothing. I think the parts are still good. What do I need to do to get the right intake ratio again?
That fitting is the vacuum line that activates the HVAC Controls. I was under my hop after changing spark plugs and could hear a hissing sound when it was running. That vacuum line an come disconnected for some reason. When I reconnected it, the Jeep ran really bad. Disconnected the battery overnight and it ran perfectly.