i also posted this on TBDSM

my girl has a 98 RS that just recently started to idle real erraticly. i dont think its a vaccuum leak... and i went to autozone and they pulled a misfire code and a O2 code. i guess it could possibly be a TPS too...?

im not too fond of bringing her car to a dealer to test the sensors one by one and paying out the yinyang for that. i have a 98 GST and was going to swap out primary O2's and see if that fixed her problem. a new O2 from autozone is going to be 100 dollars... but if its not that, shes going to be pissed.

i also noticed that when the car is just sitting there idling, if you turn on the AC or just the fan, it drops down a bit... but only to about 1200-1500. the idle RPM's range from about 3200-2000 most of the time.

thanks in advance,
Bobby