have any of you noticed that when cruising ur RPMS jump up and down? it did it while parked or stopped so i changed the O2 sensor and that stopped. acura said it was the EGR or sum crap and i replaced those things twice!

 

sounds like a dirty IAC valve. Do a search on that and you will find info on it and how to fix it

 

Mod Edit..... Belongs in Black Market

 

but the rpms only jump when im cruising at highway speeds, not while its at idle?

 

please describe your problem in more detail.

 

alright, lets say im cruising at 60MPH which is about 1750rpms on the TL-S. well it will sometimes jump, it will go from 1750-1500-2000-1750 etc. it just goes crazy and it does it for about 2-3 seconds and goes away. then it comes back.