Appears to be in limp mode

Note: Radiator fan ran slow at times since day 1. Well I had
a stereo put in it. Next my a/c sometimes wouldn't kick on,
doors started to lock on their own, few days later reduced
engine power, began to make a noise when i pressed the
gas pedal, and was stalling out and then died everytime I
hit the gas. So had it put in a shop and the guy first told
me I needed a engine, few days later told me it was stuck
in limp mode. Threw lots of codes, tired of putting money
into this car when its not any better. Helpppp!