Ascender 4WD L6-4.2L (2003)
Fuel Injector: Testing and Inspection
Fuel Injector Balance Test
With Special Tool
Fuel Injector Balance Test with Special Tool
System Description
The scan tool is first used to energize the fuel pump relay. The fuel injector tester 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.
Fuel Injector Balance Test Example (Typical)
Step 1 - 2