Answer to: Optima idles high after Throttle Position sensor replacement.For all those having this problem of high idle.......... all you have to do is swap the IAC and TPS connectors (they will fit into each others socket) . Thats right.......on my 2.5 v6 some dumbazz who did a plug and wire change swapped the conectors after finishing the job and also broke the no. 3 injector wire when the intake was removed. I purchased this car used (700.00) and determined all these things after troubleshooting numerous engine code issues. These were just the tip of the iceburg. I couldnt believe the half azz work some mechanics are capable of and worse of all it was to a woman............Unbelieveable!!!!!! Wake up America!!!!!!!