my car is throwing three codes its a 02 z28
manifold absolute pressure- (map sensor replacedit still got the code)
barometric pressure circuit-
performance problem-
has anyone had any of these codes before, my car is missing horrible and all help is appreciated.........

 

up to the top, I'd like to see you get it lined out Judd.....

Post it in PCM Diagnostics and Tuning as well