Engine Performance problem
2003 Ford Taurus 6 cyl Front Wheel Drive Automatic 150036 miles
The check engine light came on about a week ago and the car began running rough at very low speeds and when idling. Autozone's OBD II diagnostic computer spit out O2 sensor codes. I replaced both the O2 sensors but the car runs just as poorly as before. When the RPMs are below 1000 it bucks and even quits if you sit still in traffic for more than a few seconds. Do I need to replace the rear O2 sensors or is this a Mass Air Flow sensor problem or something else? I don't want to spend more money on a guess and check fix.
have the same problem?
Monday, April 28th, 2008 AT 8:16 AM