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These throttle bodies are located on the intake manifold, and contain the throttle plate(s) that control the air entering the engine. The throttle body also houses the fuel injector(s) on Throttle Body Injection (TBI) or Central Fuel Injection (CFI) systems.
This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle • Helps provide air flow for proper fuel/air mixture • Allows for a quick throttle response • Assists in cold engine starts
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