Yukon/Denali XL 1500 4WD V8-5.3L VIN T (2004)
Fuel Injector: Testing and Inspection
Fuel Injector Balance Test with Tech 2
FUEL INJECTOR BALANCE TEST WITH TECH 2
CIRCUIT
Fuel Injector Balance Test Example (Typical)
DESCRIPTION
The scan tool is first used to energize the fuel pump. 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 the flow through each
injector.
TEST DESCRIPTION
