Fuel Injection System - Single Unit TBI: Identification

The throttle body identification number is "roll-stamped" on the front mounting flange on the throttle lever side (Model 300) or throttle position sensor side (Model 500) of the throttle body. See Fig 1 . Alphabetical code letters are stamped on the throttle body at external tube locations to identify vacuum hose connections.

Fig 1: Throttle Body Identification Location This number should be used for service information.