Discussion Starter · #1 ·
Hey, i have a 2011 kia forte koup with the 2.0. I have been having a problem with it where when i disconnect and reconnect the battery the car will not run properly. When i try to start it, it will start up but runs extremely poorly like it with sit there and jump from 500 to 1500 rpm over and over and runs very rich. The first time i had this problem it gave me a check engine like for the map sensor or the o2 sensor. I changed out the map sensor and spark plugs but it did not fix the problem then it just started running normal after a few days. Its been running good for a couple of months but i recently had to remove the battery again and now it is doing it again but this time its not bring up any codes. Just wondering if anyone know why this might be happening. Thank you.