Idle Speed Control Units are compact electronic modules that stabilize engine idle by adjusting throttle input in response to load, temperature, and electrical demand. They work with modern engine management systems to deliver a smoother, more reliable idle. Function and benefits: Maintains the target idle RPM across changing conditions; reduces stalling, rough idle, and unexpected revving. Compatibility: Designed for vehicles with electronic throttle control. Connects to common ECU interfaces such as CAN or PWM. Size and build: Small footprint, rugged enclosure made from durable materials; suitable for under hood mounting in tight spaces. Performance: Improves idle stability, smoother starts, and steadier engine response under load changes. Minimal impact on normal maintenance. Installation and use: Retrofit friendly with standard wiring and mounting points; professional installation recommended to verify ECU communication and idle range. Applications and use scenarios: 1 Cold starts in winter, where idle can be rough 2 When engine accessories like AC compressor or headlights turn on, idle remains steady 3 Retrofit projects or engine upgrades that affect idle stability on older vehicles