Honda HR-V: Fuel Supply System Description - Fuel Pump
The fuel tank unit consists of the following components.
2WD
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AWD
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FUEL SUPPLY SYSTEM DESCRIPTION - JET PUMP (AWD)
Operation
The return fuel entering the jet pump from the fuel pressure regulator passes through the orifice in the jet pump to increase the flow speed, which generates increased suction pressure. This pressure (vacuum pressure) is used to transport the fuel on the sub fuel tank unit side through the transfer tube to the main side. A safety valve (relief valve) is installed for protection of the fuel line in case of an abnormal fuel pressure rise, caused by a clogged orifice etc.
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FUEL SUPPLY SYSTEM DESCRIPTION - RETURNLESS FUEL SYSTEM
The fuel returnless system incorporates the fuel pressure regulator into the fuel pump to remove the fuel return pipe and other parts. The fuel pressure regulator keeps the fuel pressure constant in the fuel pump to return the fuel into the fuel tank directly. This does not need the fuel line in the engine compartment to prevent the fuel temperature from increasing and to reduce the fuel evaporation of gas in the fuel tank.
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Improvement Control In Practical Use Fuel Consumption System Description -
Effective Control
The control system for improved fuel economy in actual traffic aims at
disseminating eco-driving. It consists of
an effective control system, ambient illumination and instantaneous fuel
consumption
PGM-FI System Description - A/F Sensor/HO2S Feedback Air/Fuel Ratio
Control
(KA/KC)
Air-fuel ratio control is part of fuel injection control and comprises the
steps of:
Calculating basic injection amount from intake airflow amount and engine
speed
Calculating air-fuel ratio cor
DTC Troubleshooting
FUEL AND EMISSIONS SYSTEMS DTC TROUBLESHOOTING INDEX (KA/KC)
DTC Troubleshooting Index
NOTE: The above DTCs are indicated when the PGM-FI system is selected with
the HDS.Some automatic
transmissio
SEE MORE:
Monitor Check - Navigation System Diagnostic Mode
Overview of the audio-navigation unit display.
These screens allow you to troubleshoot the LCD display built into the
audio-navigation unit. Select the item you want to check, and follow the
diagnostic instructions.
RGB Color
Gray Tone
White Raster
Black Raster
Color Pattern
Touch Panel Ch
EPS System Description - EPS Control
The base current is a basic current value to drive the motor. Base current is
calculated using steering torque and
vehicle speed.
EPS motor torque tends to be lower as the vehicle begins to move, and higher as
it decreases in speed due to
inertia of the rotating body. Inertia compensation increas
