Express 1/2 Ton Van V6-4.3L VIN X (2003)
Fuel Injector: Testing and Inspection
Fuel Injector Balance Test with Tech 2
SYSTEM DESCRIPTION
The scan tool is first used to energize the fuel pump relay. The scan tool is then used to pulse each injector for a precise amount of time allowing a
measured amount of fuel into the manifold. This causes a drop in system fuel pressure that can be recorded and used to compare each injector.
TEST DESCRIPTION
Steps 1-3