4.13
ELECTRONIC FUEL INJECTION
4
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
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
a
nd r elayed to the ECU. Th ese signa ls, comp rised of
separate air temperature and manifold absolute pressure
readings, are processed by the ECU and compared to its
programming for determining th e fu el an d ign ition
requirements d uring o peration. The T -MAP se nsor
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
t
he Dig ital Wrenchâ„¢ Diag nostic So ftware (de aler
only).
T-MAP Sensor Replacement
1. Remove the drivers seat and disconnect the negative
(-) battery cable.
2. Remove the cargo box access panel.
3. Disconnect vehicle harness from T-MAP sensor.
4. Remove the r etaining bolt a nd r emove the se nsor
from t
he intake boot.
5. Use a light coating of soapy water on the grommet to
aid
installation of the new sensor.
6. Install the sensor by inserting it
with a twisting motion
to properly seat the grommet.
7. Install the retaining bolt and torque to specification.
T-MAP Retaining Bolt Torque:
24 in. lbs. (2.8 Nm)
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