2001 TOYOTA PRIUS O2 sensor

IN±52
± INTRODUCTIONTERMS
2001 PRIUS (RM778U) HO2S
Heated Oxygen SensorHeated Oxygen Sensor (HO2S)
IACIdle Air ControlIdle Speed Control (ISC)
IATIntake Air TemperatureIntake or Inlet Air Temperature
ICMIgnition Control Module±
IFIIndirect Fuel InjectionIndirect Injection (IDL)
IFSInertia Fuel±Shutoff±
ISCIdle Speed Control±
KSKnock SensorKnock Sensor
MAFMass Air FlowAir Flow Meter
MAPManifold Absolute PressureManifold Pressure
Intake Vacuum
MCMixture Control
Electric Bleed Air Control Valve (EBCV)
Mixture Control Valve (MCV)
Electric Air Control Valve (EACV)
MDPManifold Differential Pressure±
MFIMultiport Fuel InjectionElectronic Fuel Injection (EFI)
MILMalfunction Indicator LampCheck Engine Lamp
MSTManifold Surface Temperature±
MVZManifold Vacuum Zone±
NVRAMNon±Volatile Random Access Memory±
O2SOxygen SensorOxygen Sensor, O2 Sensor (O2S)
OBDOn±Board DiagnosticOn±Board Diagnostic System (OBD)
OCOxidation Catalytic ConverterOxidation Catalyst Convert (OC), CCo
OPOpen LoopOpen Loop
PAIRPulsed Secondary Air InjectionAir Suction (AS)
PCMPowertrain Control Module±
PNPPark/Neutral Position±
PROMProgrammable Read Only Memory±
PSPPower Steering Pressure±
PTOXPeriodic Trap OxidizerDiesel Particulate Filter (DPF)
Diesel Particulate Trap (DPT)
RAMRandom Access MemoryRandom Access Memory (RAM)
RMRelay Module±
ROMRead Only MemoryRead Only Memory (ROM)
RPMEngine SpeedEngine Speed
SCSuperchargerSupercharger
SCBSupercharger BypassE±ABV
SFISequential Multiport Fuel InjectionElectronic Fuel Injection (EFI), Sequential Injection
SPLSmoke Puff Limiter±
SRIService Reminder Indicator±
SRTSystem Readiness Test±
STScan Tool±
TBThrottle BodyThrottle Body
TBIThrottle Body Fuel InjectionSingle Point Injection
Central Fuel Injection (Ci)
TCTurbochargerTurbocharger
TCCTorque Converter ClutchTorque Converter

± INTRODUCTIONTERMS
IN±53
2001 PRIUS (RM778U) TCM
Transmission Control ModuleTransmission ECU, ECT ECU
TPThrottle PositionThrottle Position
TRTransmission Range±
TVVThermal Vacuum ValveBimetallic Vacuum Switching Valve (BVSV)
Thermostatic Vacuum Switching Valve (TVSV)
TWCThree±Way Catalytic Converter
Three±Way Catalytic (TWC)
Manifold Converter
CC
RO
TWC+OCThree±Way + Oxidation Catalytic ConverterCCR + CCo
VA FVolume Air FlowAir Flow Meter
VRVoltage RegulatorVoltage Regulator
VSSVehicle Speed SensorVehicle Speed Sensor
WOTWide Open ThrottleFull Throttle
WU±OCWarm Up Oxidation Catalytic Converter±
WU±TWCWarm Up Three±Way Catalytic Converter±
3GRThird Gear±
4GRFourth Gear±

PP3AF±02
PP±60
± PREPARATIONAIR CONDITIONING
2001 PRIUS (RM778U)
EQUIPMENT
Voltmeter
Ammeter
Ohmmeter
Test lead
ThermometerSensor, ECT switch
Torque wrench
Dial indicatorMagnetic clutch
Plastic hammerMagnetic clutch

SS175±03
SS±10
± SERVICE SPECIFICATIONSENGINE MECHANICAL
2001 PRIUS (RM778U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Plug x Timing chain cover1515011
Chain vibration damper x Cylinder block9.09280 in .´lbf
Chain tensioner9.09280 in .´lbf
Timing chain cover Bolt A
Bolt B
Bolt C
Bolt D
Bolt E
Nut F
Nut G11
24
11
24
11
24
1111 2
245
11 2
245
11 2
245
11 28
18
8
18
8
18
8
RH engine mounting bracket x Timing chain cover5556141
Crankshaft position sensor x Timing chain cover Bolt A
Bolt B7.5
1176
11 266 in .´lbf
8
Oil control valve8.08271 in .´lbf
Crankshaft pulley x Crankshaft1281,30094
Cylinder head cover x Cylinder101007
RH engine mounting insulator Bolt A
Bolt B
Nut45
52
52459
530
53033
38
38
Cylinder head x Cylinder block 1st
2nd
3rd29.4
Turn 90°
Turn 90°300
Turn 90°
Turn 90°22
Turn 90°
Turn 90°
Water bypass pipe x Cylinder head9.09280 in .´lbf
No. 1 camshaft bearing cap x Cylinder head2323517
No. 2 camshaft bearing cap x Cylinder head12.713010
Camshaft timing sprocket x Camshaft6465047
Valve timing controller assembly x Camshaft6465047
Intake manifold x Cylinder head2020415
Exhaust manifold x Cylinder head2727520
Upper heat insulator x Exhaust manifold8.08271 in .´lbf
Exhaust manifold stay x Cylinder block2727520
Front exhaust pipe x Tailpipe Bolt A
Bolt B62
32630
33046
24
Connecting rod cap x Connecting rod 1st
2nd15
Turn 90°150
Turn 90°11
Turn 90°
Bearing cap x Cylinder block 1st
2nd22
Turn 90°220
Turn 90°16
Turn 90°
Oil pan No. 1 x Cylinder block2424518
Oil strainer x Oil pan No. 11111 28
Oil pan No. 2 x Oil pan No. 19.09280 in.´lbf
Oil filter union x Oil pan No. 13030621
Engine coolant drain plug x Cylinder block12.71309
Knock sensor x Cylinder block4445033
Water bypass pipe x Cylinder block9.09080 in.´lbf
Flywheel x Crankshaft8485762
Damper spring x Flywheel1616312

SS102±07
SS±12
± SERVICE SPECIFICATIONSSFI
134 Author: Date:
2001 PRIUS (RM778U)
SFI
SERVICE DATA
Fuel pumpResistance at 20°C (68°F)0.2 ± 3.0 W
InjectorResistance at 21 °C (68 °F)
Injection volume
Difference between each cylinder
Fuel leakage13.4 ± 14.2 W
36 ± 46 cm3 (2.1 ± 2.8 cu in.) per 15 sec.
10 cm3 (0.7 cu in.) or less
1 drop or less per 12 minutes
Mass air flow me-
ter
Resistance
at ±20°C (±4°F) THA ± E2
at 20°C (68°F) THA ± E2
at 60°C (140°F) THA ± E2
13.6 ± 18.4 kW
2.21 ± 2.69 kW
0.49 ± 0.67 kW
Throttle control
motorResistance
at 20°C (68°F) M+ ± M±
0.3 ± 100 W
Throttle position
sensorResistance
at 20°C (68°F) VC ± E2
1.2 ± 3.2 kW
VSV for EVAPResistance at 20°C (68°F)27 ± 33 W
VSV for CCVResistance at 20°C (68°F)25 ± 30 W
VSV for Purge
flow switching
valve
Resistance at 20°C (68°F)33 ± 39 W
VSV for HCACResistance at 20°C (68°F)33 ± 39 W
ECT sensorResistance at ±20°C (±4°F)
at 0°C (32°F)
at 20°C (68°F)
at 40°C (104°F)
at 60°C (140°F)
at 80°C (176°F)10 ± 20 kW
4 ± 7 kW
2 ± 3 kW
0.9 ± 1.3 kW
0.4 ± 0.7 kW
0.2 ± 0.4 kW
Vacuum sensor
for HCACPower sorce voltage4.5 ± 5.5 V
Vapor pressure
sevsorPower sorce voltage
Output voltage4.5 ± 5.5 V
3.0 ± 3.6 V
Heated
oxygen sensorHeater coil resistance at 20°C (68°F)11 ± 16 W
Accelerator pedal
position sensorResistance
at 20°C (68°F) Vcp
1 ± Ep1
Vcp2 ± Ep21.5 ± 6.0 kW
Fuel cut rpmFuel return rpm1,400 rpm

SS103±06
± SERVICE SPECIFICATIONSSFI
SS±13
2001 PRIUS (RM778U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Fuel pump assembly x Fuel tank4.04035 in.´lbf
Delivery pipe x Cylinder head1919414
Throttle body x Intake manifold2020415
Camshaft timing oil control valve x Cylinder head7.57666 in.´lbf
Knock sensor x Cylinder block4445033
Heated oxygen sensor (Bank1 sensor1) x Exhaust manifold4444031
Heated oxygen sensor (Bank1 sensor2) x Exhaust pipe4444031

SS17A±03
SS±18
± SERVICE SPECIFICATIONSIGNITION
140 Author: Date:
2001 PRIUS (RM778U)
IGNITION
SERVICE DATA
Spark plug
Recommended spark plugDENSO
NGK
Electrode gap STD
MaximumSK16R11
IFR5A11
1.0 ± 1.1 mm (0.039 ± 0.043 in.)
1.2 mm (0.047 in.)
Camshaft position
sensorResistance at cold
at hot1,630 ± 2,740 W
2,065 ± 3,225 W
Crankshaft
position sensorResistance at cold
at hot985 ± 1,600 W
1,265 ± 1,890 W

SS17B±01
± SERVICE SPECIFICATIONSIGNITION
SS±19
2001 PRIUS (RM778U)
TORQUE SPECIFICATION
Part tightenedN´mkgf´cmft´lbf
Spark plug x Cylinder head1818413
Ignition coil x Cylinder head9.09280 in.´lbf
Camshaft position sensor x Cylinder head8.08271 in.´lbf
Crankshaft position sensor x Cylinder block7.57666 in.´lbf