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ENGINE ELECTRICAL
CHAPTER 4
ENGINE ELECTRICAL
ELECTRONIC CONTROL UNIT (ECU) ................................................................. 4.2
ECU OPERATION OVERVIEW ........................................................................ 4.2
ECU SERVICE ........................................................................................ 4.2
ECU REPLACEMENT ................................................................................. 4.2
ETC LEARN PROCEDURE ............................................................................ 4.3
PRESSURE SENSORS.................................................................................. 4.4
BAP SENSOR ......................................................................................... 4.4 4
BOOST PRESSURE SENSOR......................................................................... 4.4
FUEL PRESSURE SENSOR (EVAP MODELS)......................................................... 4.4
TMAP SENSOR ....................................................................................... 4.4
AIR TEMPERATURE SENSOR DATA .................................................................. 4.5
KNOCK SENSOR ........................................................................................ 4.6
KNOCK SENSOR OVERVIEW......................................................................... 4.6
KNOCK SENSOR TESTING ........................................................................... 4.6
KNOCK SENSOR REPLACEMENT .................................................................... 4.6
CRANKSHAFT POSITION SENSOR (CPS) ............................................................ 4.7
OPERATION OVERVIEW.............................................................................. 4.7
CPS TEST............................................................................................. 4.7
CPS REPLACEMENT ................................................................................. 4.8
ELECTRONIC THROTTLE CONTROL (ETC) / THROTTLE BODY.................................... 4.9
ETC OPERATION OVERVIEW......................................................................... 4.9
ETC TEST............................................................................................. 4.9
ETC / THROTTLE BODY REPLACEMENT ............................................................4.10
ETC LEARN PROCEDURE ...........................................................................4.10
PEDAL POSITION SENSOR (PPS) ....................................................................4.11
OPERATION OVERVIEW.............................................................................4.11
LOCATION ...........................................................................................4.11
PPS TEST............................................................................................4.11
PPS REPLACEMENT.................................................................................4.12
OXYGEN SENSOR......................................................................................4.13
OXYGEN SENSOR INFORMATION...................................................................4.13
OXYGEN SENSOR REPLACEMENT .................................................................4.14
9930583 R01 - 2020-2021 RZR PRO XP / XP 4 Service Manual 4.1
© Copyright Polaris Industries Inc.
