Sorry new to this. What I need to know is do I need to change the pcm and 02 sensors if car running so good? My dad gave me car and I am a 54 year old woman with no car knowledge. I love the car but feel like dealership trying to rip my elderly father off they even said 2 of tire pressure senors failed and had to change pcm for that. I just am trying to learn all I can before I put lot of money in car. It is a 2004 with only 38000 miles on it and kept in garage it still looks brand new