Intake Air System - Honda EP3 Service Manual

Intake Air System
Refer to the System Diagram to see the functional
layout of the system.
Intake Air Bypass Control Thermal Valve
W h e n t h e e n g i n e i s r u n n i n g , t h e i n t a k e a i r b y p a s s
control thermal valve sends air to the iniectors,
INJECTOR
Throttle Body
The throttle body is a single-barrel side draft type. lt
houses the TP senser and the IAC valve. The lower
portion of the IAC valve is heated by engine coolant
f r o m t h e c y l i n d e r h e a d .
IAC VALVE
{cont'd)
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