I did a search and didnt find an answer.... OK, I recentyl fixed one of my boost issues but now I have a new one. The car feels like it is hesitating. I will make good boost in first then none in second. Then if I am driving easy in like second and hit it, I will get boost. When I look under the car I can see some smoke coming out from where the cat bolts up(front of cat). Also, the motor seems to be revving slowly for what it is. This my 1st rx so I am not sure how it should be revving. My honda would dog this car car up to 8k though, the way it is running now... I changed the fuel filter. Plugs are next. Any other ideas????

 

Do you have a pre cat?

My guess is that the pre cat or the main cat is clogged.

some good reading: https://www.rx7club.com/forum/showth...ht=clogged+cat
https://www.rx7club.com/forum/showth...ht=clogged+cat