This is a specialized tool component designed to facilitate accurate measurement of fuel pressure in General Motors’ Throttle Body Injection (TBI) systems. It interfaces between the fuel system’s test port and a standard fuel pressure gauge, enabling technicians to diagnose fuel delivery issues, such as a failing fuel pump or a clogged fuel filter, which can manifest as poor engine performance or starting problems.
Accurate fuel pressure readings are critical for proper TBI system operation. Insufficient or excessive fuel pressure can lead to various driveability problems, increased emissions, and potential engine damage. The use of a correct interface ensures a leak-free connection and minimizes the risk of inaccurate readings. In the past, diagnosing TBI fuel system issues often involved more invasive methods; this specific piece of equipment streamlines the diagnostic process, saving time and reducing the potential for damage to fuel lines and components.
