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Question edited for clarity.
Question moved to model category.
It doesn't have one. Click this link, click on the Autozone link with the picture of one. One the site, add your year and engine, NONE comes up, it doesn't have one. There are no videos showing it for that model.
The 2004 Suzuki Verona 2.5L does not utilize an idle air control (IAC) valve. Instead, an electronic throttle control (ETC) system is used which Suzuki calls the "main throttle idle actuator" (MTIA). This component is the throttle body assembly but with an internal motor that adjusts the throttle plate open or closed based on accelerator pedal position inputs to the engine control module (ECM). Similarly, the ECM adjusts the throttle plate angle at idle to control idle speed. If the idle speed is not correct, the throttle body may need to be cleaned, calibrated or replaced. You can read more here: https://www.yourmechanic.com/article/how-to-replace-a-throttle-controller-by-mia-bevacqua
Here's a link http://www.youtube.com/watch?v=VdvgsaDmkac It shows how to clean, and reinstall the throttle body on a 4.2 inline 6 trailblazer. which I believe is very much like your Envoy. The idle air control valve is located on the & is part of the throttle body It's the part the wires attach to
It sounds to me like you have replaced everything except the most likely cause of your idle control problem...The Idle Air control. (IAC) (or Idle Speed Control Valve) It is located onthe throttle body and looks like the picture below.
That is the code for the idle air control solenoid and means it is too low.
Try taking the car to Autozone or Oreillys and get a free scan. They may be able to sell you an aftermarket part to fix it. At least you can see a picture of the part and it may show the location.
It's located on the left rear of throttle body assembly. I looks like a small metal cylinder with two bolts and an oval plug with 4 prongs. Yes you can change it yourself. If you can't find it, go to your local auto parts store and have them show you a picture.
for the most part its by the throttle body stop by your local GM-dealership in the parts department and they be able to print you off pictures and diagrams showing you where it is located and what it look like as well wish you the best of luck Michigan Man.
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