Table of Contents
EFI / FUEL SYSTEM
PRESSURE SENSORS
BAP SENSOR
The Barometric Air Pressure sensor
intake duct after the air filter, measures ambient air
pressure. The sensor reading is used to detect changes
in elevation and for turbo speed limiting for altitude.
BOOST PRESSURE SENSOR
The Boost Pressure Sensor
that is used for boost target control and for turbo speed
limiting. The temperature sensor will provide a fallback in
case the intake manifold temperature sensor (TMAP)
fails.
The TMAP sensor and the Boost Pressure Sensor may
be interchanged for testing purposes as the sensors are
the same.
FUEL PRESSURE SENSOR (EVAP MODELS)
On EVAP models, the fuel pressure sensor
fuel pressure in the fuel supply line and sends pressure
data to the ECU. The ECU interprets the fuel pressure
data and raises or lowers fuel pressure based manifold
pressure.
The ECU also uses the fuel pressure sensor to prevent a
rich condition during a purge event.
TMAP SENSOR
The Temperature and Manifold Absolute Pressure
e
sensor (T-MAP)
is located on the intake manifold after
the throttle body. The sensor is the primary control
sensor for the EFI system and it measures the pressure
of the air going into each cylinder.
The TMAP sensor and the Boost Pressure Sensor may
be interchanged for testing purposes as the sensors are
the same.
4.38
q
, located on the
w
is the pressure sensor
r
monitors
AIR TEMPERATURE SENSOR DATA
The following table gives an approximate resistance
reading of the temperature sensor at the given
temperature.
TEMPERATURE
-40° F (-40° C)
-31° F (-35° C)
-22° F (-30° C)
-13° F (-25° C)
-4° F (-20° C)
5° F (–15° C)
14° F (-10° C)
23° F (-5° C)
32° F (0° C)
41° F (5° C)
50° F (10° C)
59° F (15° C)
68° F (20° C)
77° F (25° C)
86° F (30° C)
95° F (35° C)
104° F (40° C)
113° F (45° C)
122° F (50° C)
131° F (55° C)
140° F (60° C)
149° F (65° C)
158° F (70° C)
167° F (75° C)
176° F (80° C)
185° F (85° C)
194° F (90° C)
203° F (95° C)
212° F (100° C)
221° F (105° C)
230° F (110° C)
239° F (115° C)
248° F (120° C)
9929419 R02 - 2018-2019 RZR XP / XP 4 Turbo S Service Manual
≈ RESISTANCE (Ω)
45303
34273
26108
19999
15458
12000
9395
7413
5895
4711
3791
3068
2499
2056
1706
1411
1174
987
833
703
595
508
436
374
323
280
243
213
187
164
144
127
113
© Copyright Polaris Industries Inc.
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