Review on 🔧 GM Genuine Parts 217-435 Idle Air Control Valve for Fuel Injection by John Maynard

As many have pointed out, when it comes to electronics, when it comes to a critical component or switch, OE quality is hard to beat. it fits and works flawlessly with no fuss or weird "gremlins". Typical complaints about the need to replace this part range from poor idling, stumbling, stalling, stalling under load, and variable idle speeds. It also helps with excessive idle fuel trims that increase fuel economy (which is where my problems were found) and retard ignition timing by about 6 degrees after replacement.