GM vehicle owners dealing with rough idling or performance issues, this throttle position sensor and idle air control valve kit might be your solution! This 2-piece set replaces OE number 17113625 and works with a ton of Chevrolet, Buick, GMC, and Cadillac models from the late 80s through 2000s. The throttle position sensor monitors your throttle plate position and tells the ECU how much air is coming in, while the idle air control valve maintains stable idle speed by adjusting air flow. If your car is idling rough, stalling at stops, or accelerating unevenly, these components are often to blame. Installation is pretty straightforward - just remove the old parts and bolt on the new ones. No special tools or programming needed. The silver and black finish looks OEM, and the quality feels solid. This kit is perfect for common GM vehicles like Silverados, Tahoes, Impalas, Escalades, and many others from that era. Having both sensors together makes sense since they work closely in your engine's air management system. If you're experiencing idle issues or throttle response problems, replacing both at the same time can save you from having to go back in later. The parts are designed to work together seamlessly, restoring smooth operation and reliable performance. Seriously, if your GM vehicle has been acting up with idle or throttle issues, this affordable kit could solve problems that might otherwise cost you a fortune at the repair shop.