I just had the fuel system cleaned out at the shop and two days ago. and now my 85 iroc with a tpi runs worse than ever. The car is a very low milage car only 11500 sat in the garage alot i wonder if the cat could have gotten cloged up. The car idles like it is missing and when i drive it it sound like it can't clear its throat. please help... I have only had this car a short time and it has spent more time in the shop than on the road. changed plugs, cap and rotor, egr and sensor, adjusted the tps and idle valve. just trying to get it to run right. any have any advice. or take it bake to the shop. tank you in advance..

 

id remove the cat regardless, makes such an improvment on the exhaust sound. wheather it will fix your performance, i have no idea, but id kill the cat and replace it with a straight pipe just becuase. try scanning the car for codes and see what comes up.

 

thanks for your reply. we have to have our cars inspected.. here so i can't take it off. but thanks for the reply

 

a broom stick always works for clearing out clogged cats

 

unclog it with something like, yeah, a broomstick... Then get a new one come inspection season.