Recently, I've had a rough idle problem with my 99 SE. The car shudders sporadically, almost if it had a heartbeat. The dealer has had it twice, and is unable to diagnose the problem.

Fule injecters were cleaned and a new fuel filter was added. Anyone had a similar experience? Could it be an airflow issue? Car runs great when accelerating...

 

clean IACV, how to in the FAQ's
clean throttle body, how to here http://www.motorvate.ca/mvp.php

 

thanks for the tip. I'll see if that helps.

 

All tune up items will help. IACV, clean TB, oil change or maybe your engine is just getting old cause my original started to be like that once it leaked compression.