IAC/Speed Sensor location?

[DigDeez]

Can someone specifically tell me where the IAC valve and idle speed sensors are located? At every WOT the rpm's jump pass 4000. Only if I don't gas it too much while cruising will the rpm rise through 4000, thus enabling the secondaries as they should.

 

[luigisho]

The IAC is the cylindrical valve between the throttle body and the first intake runner. look at this pic http://www.bittersweetsho.com/images/kevinintake.jpg
and you will see it is not powdercoated (it's silver/gray) and has an electrical connector toward the rear.

 

[DigDeez]

What about the speed sensor?

 

[luigisho]

Not sure what you are referring to. The idle speed control is regulated via the IAB/IAC unit. It has an electronic sensor and valve contained in the same unit. Another speed sensor the vehicle speed sensor-VSS- is located on top of the tranny. Follow the speedo cable from the firewall down to the bell housing.
The only other thing I can think of regarding the vehicle speed control sensor-VSC-might be connected with the cruise control system. I really don't have any experience with this system as it was ripped out of my GenI when I bought it and I never felt the need to go in and fix it.

 

[DigDeez]

Actually, I think I'm trying to refer to the VSS. My issues are stemming from the rpm's jumping very high when you gas it in 1 or 2 gear.