Temp / Manifold Absolute Pressure Sensor (T-Map); Crankshaft Position Sensor (Cps) - Polaris 2013 RANGER RZR S Service Manual

ELECTRONIC FUEL INJECTION
TEMP / MANIFOLD ABSOLUTE
PRESSURE SENSOR (T-MAP)
Operation Overview
Mounted on the throttle body intake manifold, the T-MAP
sensor performs two functions in one unit.
Air passing through the intake is measured by the T-MAP
and relayed to the ECU. These signals, comprised of
separate air temperature and manifold absolute pressure
readings, are processed by the ECU and compared to its
programming for determining the fuel and ignition
requirements during operation. The T-MAP sensor
provides the ECU with engine load data.
T-MAP Sensor Test
The T-MAP sensor is a non-serviceable item. If it is faulty,
it must be replaced.
IMPORTANT: This sensor should only be tested using
the Digital Wrench™ Diagnostic Software (dealer
only).
T-MAP Sensor Replacement
1. Remove the seats and rear service panel. (see
chapter 5).
2. Remove the rear cargo box (see chapter 5).
3. Remove the cable tie from the sensor connector.
4. Disconnect vehicle harness from T-MAP sensor.
5. Remove the retaining bolt and remove the sensor
from the intake boot.
6. Use a light coating of soapy water on the grommet to
aid installation of the new sensor.
4.12
T-MAP
9924125 - 2013 RANGER RZR / RZR S / RZR 4 Service Manual
© Copyright 2012 Polaris Sales Inc.
7. Install the sensor by inserting it with a twisting motion
to properly seat the grommet.
Torque to Specification
Bolt
Intake Boot
8. Install the retaining bolt and torque to specification.
T-MAP Retaining Bolt:
25 ± 2.5 in-lbs (3 ± .3 Nm)
CRANKSHAFT POSITION SENSOR
(CPS)
Operation Overview
The crankshaft position sensor is essential to engine
operation, constantly monitoring the rotational speed
(RPM) and position of the crankshaft.
CPS
A ferromagnetic 60-tooth ring gear with two consecutive
teeth missing is mounted on the flywheel. The inductive
speed sensor is mounted 1.0 ± 0.26 mm (0.059 ± 0.010 in.)
away from the ring gear. During rotation, an AC pulse is
created within the sensor for each passing tooth. The ECU
calculates engine speed from the time interval between
the consecutive pulses.
T-MAP
= T