I've noticed that now that my idle is off beat and surging, and stumbles a little under 1500 RPM but after 1500 RPM it runs smooth, when I take off off the line, you can't feel the thrust like you use to, I have to stall it to about 1050 RPM and then give it full throttle to feel that affect again, so do you all think it is the IAC, oh I am also gonna have my friend John Paul check my TPS Voltage cause he has all the devices...please give some advice or thoughts...thanks...AARON

 

It may not be that but I have heard that takin off your throttle body and givin it a thorough cleaning along with taking the IAC off and cleaning the passage and making sure its opperating correctly always helps the Idle quality so you may want to do it anyways If you think your TB might be dirty.