When I put gas in my 03 Kia optima willrev then sputter and die.
Even when I don't fill it. It takes 3-4 times to get it to start again. Please tell me this is not an expensive fix. Has 140 thousand miles,
also how many o2 sensors on it? I was told they need replaced but one guy said it only has 2 another tells me 4.
Thank you