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 (
SEE MORE:
NOTE: Before you troubleshoot, review the general troubleshooting
information.
1. VSA modulator-control unit performance check:
Start the engine.
Check the parameter(s) below with the HDS. Do not press the brake pedal.
Is there 10 MPa or more?
YES
Go to step 2.
NO
Go to step 3.
2. Brake pedal
Removal
1. Harness Cover - Remove
2. Positive Cable and Connector (Alternator) - Disconnect
NOTE: Remove the positive cable clamp at the same time.
3. Cylinder Head Cover Harness Holder - Move
Disconnect the connectors (A)
Move the harness holders (B).
4. Breather Hose - Disconnect
Remove th