I was checking my TPS today and found it was around 1.03 volts ( going to verify and compare with a second volt meter to be sure). Was going to adjust the TPS sensor, but I can't even get to the screws with the IAC valve in place on the the throttle body. I don't want to damage the screws by using an inappropriate screw driver or not getting a good bite on them. Not a big deal to remove the IAC valve, just wanting to know if that is common practice? Also, was checking the amount of turn on the TB air screw and it is at about 2.5 turns. From what I remember, this should not be above 2 turns. Adjusting it by 1/2 turn does make a difference. According to instructions I have, it should be betwee 1/2 and 2 turns max. If above 2 turns, adjust idle stop screw another 1/2 turn and readjust air screw until it is within those parameters. Does this sound right?