Temperature / Manifold Absolute Pressure Sensor (T-Map); Operation Overview; T-Map Test; Tmap Replacement - Polaris Sportsman 850 Service Manual
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Also See for Sportsman 850:
- Owner's manual (167 pages) ,
- Owner's manual for maintenance and safety (153 pages) ,
- Service manual (12 pages)
Table of Contents
TEMPERATURE / MANIFOLD ABSOLUTE PRESSURE SENSOR (T-MAP)
OPERATION OVERVIEW
Mounted on the throttle body, the temperature and
manifold absolute pressure sensor (T-MAP)
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.
T-MAP TEST
The temperature and manifold absolute pressure sensor
(T-MAP) is a non-serviceable item. If it is faulty, it must
be replaced. This sensor requires a 5 Vdc input to
operate, therefore the T-MAP sensor should only be
tested using the Digital Wrench® Diagnostic Software
(dealer only).
TMAP REPLACEMENT
1. Remove the intake/plenum. , page 3.25
q
performs
2. Thoroughly clean around the TMAP to avoid getting
dirt in the intake.
3. Disconnect the harness
4. Remove the retaining bolt
5. Install the new sensor using a light coating of oil on
the O-ring to aid installation.
6. Torque the T-MAP retaining bolt to specification.
7. Reverse the previous steps to assemble the vehicle.
FUEL SYSTEM
t
from the T-MAP sensor.
y
and sensor.
TORQUE
T-MAP Retaining Bolt:
30 in. lbs (3.5 Nm)
4
4.31
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