I'd start by checking the cables from the shifter. R/L and U/D have different cables. You should see the movement on the transmission side. Next step would be to check the clutch slave cylinder and verify the clutch is working.
Are you able to shift gears when the engine is off?
All posters here need to start their post with
is the cel on a what's the code.
To solicit and take advice without knowing those things isn't smart and will cost you $$$$. If not, just go buy and handful or TPS's and O2's and call the Rsx a pile of crap.
Ok so looping story short. I have a 2003 acura rsx type s. Ran good when I got it off the lot, but then I ran into a lot of problems. The main problem was that the battery wouldn't keep the car charged after sitting there over night. After looking at it realized the connections were just loose...
I have a 2002 RSX-S with 107k and when I'm driving normal switch gears at around 3500-4000 there is a 1/2 sec minor sputter and loss of power...from 1st-2nd 2nd-3rd and 3rd-4th only. During WOT it runs perfect. I changed the plugs to oem ngk iridiums, oil change at acura, tranny flush at acura...
So I'm close to 8K in third about to shift to 4th and my dumb ass grabs 2nd by accident (yeah I know, I suck). Luckily I got the clutch pedal back down before I blew my motor. The car drove fine until I got off the freeway. 1st and 2nd gear bogged at low RPMs (usually anything lower than 3K) but...
I have a 2004 RSX and I had the battery out for a while and when I put the battery back in the alarm started going off so I tried to unlock it to shut it off but my remote wouldn't work at all. The doors and hatch unlock and lock just fine with the manual lock button on the inside but I...