Two problems related to check engine light on have been reported for the 2006 Kia Motor Optima. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Kia Motor Optima based on all problems reported for the 2006 Optima.
I went to go shopping, and at the second stop sign in my neighborhood I stopped. When I tried to drive the gas pedal when pushed would not let the engine go fast enough to go above 20 mph, then I noticed that the check engine light was on. I pulled over and checked my engine and its fluids, could not find any thing wrong. So I started the car up again, and everything seemed to work fine. So I drove off and the car worked like it should have. I then went to a auto parts store, and they used their meter to check engine codes. The code was p2135, code definition: throttle pedal/position sensor 'a/b' voltage correlation.
My 2006 kia Optima just stopped running yesterday, without any warning, in the middle of a high traffic street. It completely lost power and there was nothing I could do. Since there was no warning (check engine light not on, no stuttering, etc. ), I wasn't able to get to the side of the road. The car behind me had to swerve to not hit me. I'm a 67 year old, disabled woman who was stuck on the side of that busy street for a half an hour until my car could be towed. Upon diagnostic testing, a mechanic found that the car needs a crank sensor (as well as an oxygen sensor). As he said, "we replace a lot of these on this model car". After extensive research, online, reading blogs from other kia owners, I've found that several people have had the same problem I've had. A friend of mine had the same problem on his way back from a trip. The sensor just goes out and the car dies right where it is, and even if it can be started again, it will only run for a short amount of time and dies again. This is a very scary problem. And very expensive also. If kia knows that this is a common problem, why isn't there a recall?.