I need help! OBD Codes showing, but where do I start?
I Need Help! A week ago i purchased a 2001 Kia Rio (miles 88,000) that had been sitting for a couple of years. When I looked at the car it would barley run because of the old gas. The owner had her mechanic clean the gas tank, fuel pump screen, and change the fuel filter. After that it ran fine on the way home (with the check eng. light on). Then it sat for a few days and when I tried to start it, it was hard starting.When I got it running, it was running so rough it wasn't even drivable. The codes it showed on my OBD were P1166,P0340,P0325,p0102. I've looked up all the codes, but is there a chance that one thing is triggering all the other codes to show? Or do I have to change the Knock sensor, Cam sensor, Mass airflow, and what ever p1166 means? Please Help Me!