2003 Hyundai Santa Fe 6 cyl Four Wheel Drive Automatic 113000 miles
my car runs fine untill I try to take it on to the highway. Once I get it up to 60 the check engine light comes on and it wont go any faster. I lose power and it goes down to 40 mph. When I turn the car off and wait a few minutes and turn it back on the check engine light it off and it drives like normal. I tired to take it to advanced auto to get a code and nothing came up.