The car used to kick into high idle right after starting it up. After replacing the O2's, it barely idles at 1000 rpm for warm up, and lingers down around 500 rpm normal driving. Today, on a somwhat brisk morning, it didn't even idle at first. I had to apply some throttle to let it stay on. Any ideas as to what might be wrong?

...I guess I can find some consolation in getting great gas mileage now though .

thanks guys

 

~500-700rpm sounds normal to me. When I first turn on my car it only goes up to about 1100rpm.

Maybe everything is all better now?

 

Before I ever changed anything the car idled around ~1200-1400 warm-up, and ~600-700 normal.
Right now it idles at ~400-600, and sometimes feels like its going to shut off by itself.

 

did you reset the ecu using the switch under the dash (well technically next to the gas pedal)? if so then you left the dial in the wrong position go take a screwdriver and turn it the other way til it stops.... i have made this mistake myself once.

 

Did you reset your ecu? I don't know if it would help or not.

Also, are you getting any other codes? Are all connections for the o2 sensors firmly pushed in?

 

You have to first reset the ecu and then adjust your idle. I had to do this with my car when I replaced the O2 sensors (about 3 months ago). I think the faq has instructions on how to set the idle. You can also go here:

http://home.earthlink.net/~maxfaq/

This should also have instructions on how to set the idle. My car has been working great so far.

 

reset ur ecu first, if it still feels ackward, adjust ur IACV.