Pontiac Firebird engine RPMs do not increase on startup, requiring engine shutdown on Pontiac Firebird

Some Pontiac Firebird owners report experiencing issues where the engine RPMs do not increase on startup, often requiring the engine to be shut down. This problem may be attributed to a malfunctioning idle control valve, which can cause RPM fluctuations and potentially lead to stalling if not addressed. Additionally, faulty throttle position sensors may provide incorrect information to the engine control unit, negatively impacting the engine's response during startup. Some owners also report transmission-related issues that hinder effective power transfer to the rear wheels, affecting acceleration and RPMs. Furthermore, the engine may need additional fuel to operate while cold, which can influence ignition timing and power output, complicating the startup process. Prompt diagnosis and maintenance of these issues are crucial to prevent the need for shutting down the engine.