Ok before I dump more $$ in repairs here's the deal.. when I shift in 2nd or 3rd sometimes the car will seem like its out of gas or something bog a bit.then go like nothings wrong.. high rpms are fine.. my car used to bog a bit up top but after replacing fuel filter, maf, maf connector, cat convertor it runs better but the shift bog is bugging me.. car ran lean before tune.. then ran super lean when I had a misfire code pull up.. then fixed leaks in the intake and ran rich again... Plugs and wires are ten yrs old but only have 26k on them.. I don't drive much.. I looked at opti its good.. and my car fires right up. My o2s have never been changed and car has 74k on it and is 15yrs old.. right now I'm getting no codes. What should I look into.

 

I would check fuel pressure.and pull a few plugs out and see what they look like.

 

Ok ill look into it.. its never done this shift bog till a few months back between my other issues... My cutout is open right now and car runs smoother with it shut it seems idk.. its bugging me and its draining my wallet replacing everything.. ill check fuel pressure as soon as I get a gauge

 

I'm also hearing I need a new tune since my car was tuned during its issues the proper a/f it showed wasn't correct. ???