iv
Active Fuel Injector Tester User Guide
Contents
Direct Injector Connection ......................................................................................................................19
Direct Injector and Fuel Pump Connection ..............................................................................................20
Step 2—Connect the Tester to Power ..........................................................................................21
Adjusting the Hanger ...................................................................................................................22
Testing ........................................................................................................23
Step 1—Connect and Power-up AFIT ..........................................................................................24
Step 2A—Select Vehicle ..............................................................................................................25
Step 2B—Clear Vehicle Selection ................................................................................................26
Step 3—Select a Test ..................................................................................................................27
Injector Test ............................................................................................................................................27
Pressure Test ...........................................................................................................................................28
Leak Down Test .......................................................................................................................................28
Viewing Test Results .....................................................................................29
Viewing Results on AFIT ...............................................................................................................30
Uploading Test Data to a Shop Computer .....................................................................................31
Step 1—Connect the Main Control Unit to the Computer ......................................................................31
Step 2—Upload the Data to the Shop Computer ...................................................................................32
Step 3—Viewing the Test Results on the AFIT PC Application ................................................................33
Utilities ........................................................................................................35
Draining the FMU .........................................................................................................................36
Updating the Database ................................................................................................................37
Locating an Injector .....................................................................................................................38
Maintenance ................................................................................................39
Replacing the Fuel Filter ..............................................................................................................40
Procedure ...............................................................................................................................................40
Adjusting the Contrast .................................................................................................................41
Replacing the Injector/Fuel Pump Fuse ........................................................................................41
Replacing the Fuel Schrader Connector Seal ................................................................................42
Uninstalling the AFIT PC Application Software .............................................................................42
Contact Information .....................................................................................43
Warranty ......................................................................................................44