I have installed a rebuilt 2.4 into a 2003 Optima
From the time I turned the key on the Check engine light has been on & the idle was up and down if any idle at all I got it to idle warm by moving the throttle cable back & forth On the test drive the trans shifted prefect Stopped & topped the tank off with gas take off down the street & the trans won't shift or if it does it is around 4-5000 RPM
I scanned it & got P0123 as the only code the ECM would release of 2stored
P0123 also was stored in the enhanced memory
I changed the TPS with no change & the only other thing being the wiring
Thank's ahead Bob
From the time I turned the key on the Check engine light has been on & the idle was up and down if any idle at all I got it to idle warm by moving the throttle cable back & forth On the test drive the trans shifted prefect Stopped & topped the tank off with gas take off down the street & the trans won't shift or if it does it is around 4-5000 RPM
I scanned it & got P0123 as the only code the ECM would release of 2stored
P0123 also was stored in the enhanced memory
I changed the TPS with no change & the only other thing being the wiring
Thank's ahead Bob