Page 227 - Manual Oficina Polaris RS1 2018 e 2019

FUEL SYSTEM

ELECTRONIC THROTTLE CONTROL THROTTLE BODY SERVICE
(ETC) / THROTTLE BODY The throttle body assembly is a non-serviceable
component. However, the fuel rail, fuel injectors, and the
OPERATION OVERVIEW Temperature and Manifold Pressure Sensor (TMAP) can
be serviced separately (see “Fuel Injectors” and
Mounted to the cylinder head, the dual throttle body q
assembly provides the proper air/fuel ratio needed for “Temperature / Manifold Absolute Pressure (T-MAP)
Sensor).
engine operation.
THROTTLE BODY REMOVAL
1. Remove the engine access panel.
2. Be sure the engine has cooled enough to work on.
3. Remove the hood, front storage box, and disconnect
the battery.
4. Loosen the hose clamps q retaining the intake
plenum w to the throttle body. 4

The throttle body assembly also includes the Electronic
Throttle Control and Idle Air Control.
NOTE

DO NOTattempt 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.
5. Remove the fastener e retaining the intake plenum.

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).

9928689 - 2018 RZR RS1 Service Manual 4.41
© Copyright Polaris Industries Inc.