Can't wait to see what this is...prob the O sensor....just noticed it today. I just got it back from the body shop. I had to get the rear bumper fixed I got it in the rear from Hyundia three weeks ago....she got the worst of it as the hitch ate up her hood and front grill. I only had some slight scuff marks and scratches.

I am not sure what it could be ....just took it up on 95 and it went right up to cruising speed no issue....oil has been changed.....must be the sensor. I need to change the air filter...might be running lean.