My friend has a 2005 Elantra which is running a little rough when she accelerates. I?ve check the OBD codes and the only thing tripping the computer is the O2 sensor. When I looked more into her car they have 2 O2 sensors, and the meter didn?t specify which one would be tripping the computer. So now I have a few questions.
first. Are there different symptoms for both of these 02 sensors to tell me which one is tripping the computer?
second. Would an O2 sensor really effect the acceleration enough to make the car stumble at times? Or should I start looking into bigger issues?