On Sunday I did a self diagnostic and got back error codes that informed me that i needed a front heated o2 sensor, and a knock sensor. After the check the service engine soon light no longer was on. Yesterday I noticed that my car was idling alot higher than normal. It usually idles at the first mark beneath the 1000 rpms mark no it is right below 1. Any ideas of what could have caused this???

 

Yes in this situation. You did not return the screw back to its right spot.

Proph

 

I kinda thought that was what it might be what is the correct spot?

 

I believe the correct spot is in the center, though you might want to check me on this.

 

Check... the FAQ
http://vbxmaxima.8m.com/ecu.html

 

The IACV controls idle and from what I read the IACV isn't connected to the ECU in any way. Why are you worried about a 100rpm increase during cold idle?

 

Its more like 400 rpms the cold idle is now what it was when I had the AC on. Now when the AC is on it Idels over 1

 

I put the screw back in the correct place and it worked my idle is back to normal.. thanks for the help!!!

 

CORRECTION!!!
The ECU does apparently control idle as well. Good day.