The Fuel Management Unit (Fmu) - Bosch CH-47976 User Manual

The Fuel Management Unit (FMU)

The FMU handles fuel and pressure measurement. The power LED indicates when it is receiving
power from the MCU.
• Hanger—use to hang the unit from the hood of the vehicle to allow for proper fuel flow
through the FMU.
• Drain Hose—use to capture drained fuel. Make sure to use a container approved for
collecting fuel.
• Interconnect Cable—connect to the MCU to provide power to the FMU and to send and
receive test signals.
• Sight Glass with Replaceable Filter—use to visually monitor the fuel flow and to
examine the fuel for contamination.
• Fuel Access Hose (FAH)—use to connect the FMU directly to the vehicle's fuel test port.
Drain Hose
Hanger
Interconnect Cable
Sight Glass
Fuel Access Hose (FAH)
Fuel Schrader Connector
Active Fuel Injector Tester User Guide
AFIT Hardware
9