9928492 R04 - 2017-2018
RZR
XP 1000 / XP4 1000 Service Manual
© Copyright Polaris Industries Inc.
4.39
ELECTRONIC THROTTLE CONTROL (ETC) / THROTTLE BODY
OPERATION OVERVIEW
Mounted to the cylinder head, the dual throttle body
q
assembly provides the proper air/fuel ratio needed for
engine operation.
The throttle body assembly also includes the Electronic
Throttle Control and Idle Air Control.
NOTE
DO NOT attempt to service the ETC
q
. The ETC is a
non-serviceable component and can only be tested
using Digital Wrench®. If the ETC is faulty, the entire
assembly must be replaced.
Mounted to the intake plenum, the ETC acts as an
electronically controlled throttle body. The ETC controls
engine throttle operation to provide the proper air/fuel
ratio needed for engine operation at all RPM ranges. The
ETC controls engine RPM based off input provided by
the Pedal Position Sensor (PPS) and Electronic Control
Unit (ECU).
THROTTLE BODY SERVICE
The throttle body
assembly is
a non-serviceable
component. However, the fuel rail, fuel injectors, and the
Temperature and Manifold Pressure Sensor (TMAP) can
be serviced separately (see Chapter 4 – FUEL
INJECTORS, page
and Temperature / Manifold
Absolute Pressure (T-MAP) Sensor, page
).