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:
Driver's Seat Position Sensor Removal and Installation
Removal and Installation
SRS components are located in this area. Review the SRS component locations -
Refer to: SRS Component
Location Index (KA/KC), or SRS Component Location Index (KA/KC) and the
precautions and
procedures before doing repairs or service.
NOTE: Do not turn the vehicle to the ON
Timing Gears
* PLEASE READ THIS FIRST *
NOTE: Examples used in this article are general in nature and do not
necessarily relate to a specific engine or system. Illustrations and procedures
have been chosen
to guide mechanic through engine overhaul process. Descriptions of processes
of cleaning, inspection, ass
