I have a 98 supercharged 5th gen. prelude and i just took it to the shop because it needed new pistons and rings. All of that is replaced but the car bogs down after about 1/4 throttle. It seems as if it is hickuping. I have an AF ratio gauge and it is completely in the lean. Prior to the new pistons i gutted my CAT and this problem occured then, does anybody think it's my 02 sensor, or any ideas? Please help me

 

You going to need another set of pistons and rings soon....

 

gutting your cat on an obd2 car was dumb. Now your **** is gunna run bad even with a good o2 sensor. Buy a new cat and o2 sensor(s) depending on wich one is bad and call it a day.

Oh and for god sakes get some tuning if its that bad!!!!!!!!!!!!!!!!!!