Jerry Dedios 

2010 Mitsubishi Lancer GTS 2.4L. 133,000 miles. Automatic. Bought used in Union City, NJ. I have a P2423 code that I can't seem to fix. To start off I don't know if this is the only problem that my car has. My cars acceleration and power does not feel the same as when I got it. It feels like it lost power. I hear a little bit of rattling coming from the hood my mechanic told me it could be the heat shield? Whenever I lightly tap the gas pedal I can hear a small "whoop" (police whoop whoop noise) come from the exhaust maybe? I'm also experiencing stiff steering wheel, but not like if it was requiring steering liquid, more like when I wanna shift lanes it feels like the wheel doesn't go along with the steering wheel? My car doesn't take bumps too well. Whenever I hit small potholes or rough roads my car moves side to side instead of up and down. And it also sounds like the metal hits something. And also one of the newest problems. My radio screen doesn't turn on anymore but the radio is still working I can listen to music I just can't see the little screen with the time and station number. Also can you recommend anything to fix a long key scratch on the doors.