It was the throttle plate... i made the mistake of not changing my own
oil about 30k miles ago, went to a 15 min place, and the air filter was
due for replacement, and pretty dirty, so I just let them throw it in
(I know, overpaying for the easy stuff is fun sometimes though)--- but
anyway, the genius didn't have the housing back on properly, so there
was about a 1/4 in gap in the back, which I am assuming helped my
throttle plate grow itself a nice black ring around the edges...
a little throttle body cleaner and an old toothbrush later, it's
running right again.
Thanks for the suggestion.
now my second question is why in gods name does my elantra blow
headlights like that's its job? (no moisture, etc... it just seems to
burn one out like clockwork about every 6 months)--- i've heard that my
problem is not uncommon...just wondering if there was an easy fix...