Honda HR-V: Description
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Warm Up Three Way Catalytic Converter (WU-TWC), Under-Floor Three Way
Catalytic Converter
(Under-Floor TWC)
The warm up three way catalytic converter (WU-TWC) and the under-floor three
way catalytic
Overview
The electronic throttle control system (ETCS) opens and closes the throttle
valve by electronic control. This
system consists of a throttle actuator built into the throttle body, throttle
v
FUEL FILL CAP
FUEL TANK VAPOR/LIQUID
SEPARATION VALVE
FUEL TANK
FUEL PRESSURE REGULATOR
FUEL PUMP
FUEL FILTER
AIR FUEL RATIO (A/F) SENSOR
(SENSOR 1)
WARM UP THREEWAY CATALYTIC
CONVERTER (
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FUEL FILL CAP
FUEL TANK VAPOR/LIQUID
SEPARATION VALVE
FUEL TANK
FUEL PRESSURE REGULATOR
FUEL PUMP
FUEL FILTER
AIR FUEL RATIO (A/F) SENSOR
(SENSOR 1)
WARM UP THREEWAY CATALYTIC
CONVERTER (WU-TWC)
UNDER-FLOOR THREEWAY
CATALYTIC CONVERTER (UNDERFLOOR
TWC)
SECONDARY HEATED OXYGEN
SENSO
Inspection
1. Rocker Arm Assembly - Remove
2. Rocker Arm Assembly - Disassemble
3. Camshaft Sprocket - Remove
4. Camshaft End Play - Inspect
Fig. 1: Lost Motion Holder Tightening Sequence With Torque Specifications
Put the rocker shaft holders and the lost motion holder on the cylinder
head
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