Subaru Robin EX13 - Manual (Page 99)

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5-2-4 POWER GENERATION MODULE
The power generation module is installed under the flywheel . This module provides power to
the ECU .
5-2-5 WIRE HARNESS
The wire harness for the EFI system connects key system components to the ECU .
The EFI wire harness contains a temperature sensor that measures engine temperature .
The ECU uses this input to adjust to engine conditions .
5-2-6 CHOKE SYSTEM
The throttle body monitors air and engine temperature at start up and performs the choke
function automatically .
The choke system automatically adjusts for easier start of the engine in all weather conditions .
5-3 FUEL SYSTEM OUTLINE
TANK
FUEL RETURN PIPE
FILTER PIPE FUEL PUMP FUEL INJECTION COMBUSION
PULSING PRESSURE
ECU
5-4 FUEL SYSTEM TESTING AND DIAGNOSIS
Most fuel system malfunctions occur when the fuel/air ratio of the mixture is not correct .
This is usually caused by clogged fuel filters, air passages, fuel passages, or by variations in
the fuel level .
To get the best possible performance from the throttle body, make sure that the fuel feed and
air feed passages are free so air and fuel can flow freely through them .
The procedure for inspecting the fuel system is described below .
Run all system tests with a full tank of fresh, clean fuel .