Polaris RZR 900 2015 Service Manual page 255

DATA DISPLAY
DEFINITION
ITEM
ECU control of the
Fuel Pump
fuel pump
Number of steps the
Idle Air Control
ECU would like to
Desired Position
have the IAC open
Number of steps the
Idle Air Control
ECU has the IAC
Position Command
valve open
Time the ECU is
Ignition Coil Dwell
grounding the coil
Degrees BTDC that
the ECU is signaling
Ignition Timing
the coil to send spark
to a cylinder
Time the ECU is
Injector Pulse Width grounding the
Measures air
Intake Air
temperature at the
Temperature
TMAP sensor
Measures air
pressure inside the
intake manifold on
the TMAP sensor.
Manifold Absolute Reading will be high
Pressure at key on and wide
open throttle.
Reading will be low
at idle / closed
How much load the
Percent Engine Load
engine is under
Indicates if the ECU
RPM Limit is currently limiting
Indicates what gear
position the
Selected Gear
transmission switch
Same as ignition
Spark Angle
ECU control of the
Start Enable Driver
start solenoid
9926814 R08 -
Manual
© Copyright Polaris Industries Inc.
VALUE
≈ 232° F (111° C)
≈ 237° F (114° C)
≈ 252° F (122° C)
On
Off
35–50
35 – 50
≈ 2–3 ms
0 to 10° BTDC
30 to 40° BTDC
2–3 ms
4–7 ms
injectors
varies
14.7 PSI (101 kPa)
5–7 PSI (34–48
kPa)
7–11 PSI (48–76
kPa)
throttle.
20–30%
Active
Inactive
RPM
dependent on gear
selected
is in
—
timing
Active
Inactive
2015-2016 RZR 900
VALUE DESCRIPTION
Hot light on – power limit
Engine protection (ignition misfire)
Engine protection (shutdown)
ECU is grounding the fuel pump relay. ECU
ground this relay for the first 2–3 seconds after
key on and any time RPM is seen from the CPS
ECU is not grounding the fuel pump relay. Pump
not running
typical warm idle
typical warm idle
–
Typical ignition timing on a warm engine at idle
Typical max spark at wide open throttle
Average reading on a warm engine at idle
Unit is start-up enrichment or under rapid
acceleration
should be close to ambient air temperature.
Warm engine at idle may cause reading to be
higher
Engine not running and unit is near sea level
Normal reading when warm engine is at idle
Normal reading when unit is 1/2 throttle to WOT
Typical warm idle. Cold start up reading will be
higher
ECU is limiting the RPM
ECU is not limiting RPM
High, Low, Neutral, Reverse, Park
"–" or Null indicates no reading from the sensor /
stuck between gear positions
—
ECU is grounding the start solenoid. Unit should
crank when key is turned to START
ECU is not grounding the start solenoid
2016 RZR S 1000 Service
FUEL SYSTEM
4
4.31