Why does my Chevy Silverado idle and stall when stopping?
Why does my Chevy Silverado idle and stall when stopping? I had a trouble code of # 22 t.p.s, I replaced the throttle position sensor, m.a.p sensor, and the idle air control sensor,however i am still having the problem, it is throttle body injected, and there arent any other codes showing up. Any help would be much appreciated. Hello Clay. Where is the idle button on a GM TBI? The "A" and "B" terminals are located on the top right of the connector. Unplug the IAC valve located on the passenger side, rear of the throttle body. Start the engine....