36
Utilities
Active Fuel Injector Tester User Guide
Draining the FMU
CAUTION!
It is recommended that you drain the fuel Management Unit after
each use to avoid hazardous situations.
• Do not over tighten the fuel filter
• Do not loosen the filter to drain the Fuel Management Unit
Note: To complete this procedure, the FMU must be connected to the MCU before you begin.
1. Disconnect the FMU from the vehicle’s
fuel rail.
2. Navigate to and select
Drain Tester
.
Follow the on-screen instructions:
• Place drain hose in approved
container.
• Select
Continue
to start draining.
Draining Tester
is displayed. To stop
draining and return to the Main
menu, select
Cancel
.
Main Menu
Utility Functions
Vehicle Selection
Pressure Test
Leak Down Test
Drain Tester
Update Tester
View Vehicle Info
Injector Locator
Injector Test
Fu
el M
an
ag
em
en
t U
nit
POW
ER
Drain hose
Interconnect Cable
(To MCU)
TIP: Slowly turning
the FMU upside
down and then right
side up drains the
fuel faster.
