Page 1486 of 1943
A13930
N´m (kgf´cm, ft´lbf)
Non±reusable part: Specified torque Heat Insulator
Exhaust Manifold
Ignition Coil
(w/ Igniter)
PCV Valve
Water Temprature
Sensor
Camshaft Position
Sensor
Engine Wire
Oil Dipstick
and Oil GuideThrottle Body
Assembly O±Ring
Gasket
Engine Wire
Gasket
27 (275, 20)
Oil Filter
20 (204, 15)
PCV Hose
Oil Control
Valve
20 (204, 15)
Intake Manifold
Spark Plug
± ENGINE MECHANICALCYLINDER HEAD
EM±27
1143 Author: Date:
2001 PRIUS (RM778U)
Page 1550 of 1943

SF1KN±01
± SFISFI SYSTEM
SF±1
1215 Author: Date:
2001 PRIUS (RM778U)
SFI SYSTEM
PRECAUTION
1. BEFORE WORKING ON THE FUEL SYSTEM , DIS-
CONNECT THE NEGATIVE (±) TERMINAL CABLE
FROM THE BATTERY AND HV BATTERY SERVICE
PLUG
HINT:
Any diagnostic trouble code retained by the computer will be
erased when the negative (±) terminal cable is removed from
the battery. Therefore, if necessary, read the diagnosis before
removing the negative (±) terminal cable from the battery.
2. DO NOT SMOKE OR WORK NEAR AN OPEN FLAME
WHEN WORKING ON THE FUEL SYSTEM
3. KEEP GASOLINE AWAY FROM RUBBER OR
LEATHER PARTS
4. MAINTENANCE PRECAUTIONS
(a) In event of engine misfire, these precautions should be
taken.
(1) Check proper connection to battery terminals, etc.
(2) After repair work, check that the ignition coil termi-
nals and all other ignition system lines are recon-
nected securely.
(3) When cleaning the engine compartment, be espe-
cially careful to protect the electrical system from
water.
(b) Precautions when handling oxygen sensor.
(1) Do not allow oxygen sensor to drop or hit against an
object.
(2) Do not allow the sensor to come into contact with
water.
If vehicle is Equipped with Mobile Radio System (HAM, CB,
etc.)
If the vehicle is equipped with a mobile communication system,
refer to the precaution in the IN section.
5. AIR INDUCTION SYSTEM
(a) Separation of the engine oil dipstick, oil filler cap, PCV
hose, etc. may cause the engine to run out of turn.
(b) Disconnection, looseness or cracks in the parts of the air
induction system between the throttle body and cylinder
head will allow air suction and cause the engine to run out
of turn.
6. ELECTRONIC CONTROL SYSTEM
(a) Before removing SFI wiring connectors, terminals, etc.,
first disconnect the power by either turning the ignition
switch to LOCK or disconnecting the negative (±) terminal
cable from the battery.
HINT:
Always check the diagnostic trouble code before disconnecting
the negative (±) terminal cable from the battery.
Page 1582 of 1943

B00319
Recommended Oil Viscosity (SAE):
10W ± 30
5W ± 30 PREFERRED
TEMPERATURE RANGE ANTICIPATED BEFORE NEXT OIL CHANGE100
38 80 60
27 40
16 0
±720
4 ±18 ±20
±29
°C °F
LU02K±08
B11764
Oil Pressure
Switch
B11765
Oil Pressure Gauge
± LUBRICATIONOIL AND FILTER
LU±1
1307 Author: Date:
2001 PRIUS (RM778U)
OIL AND FILTER
INSPECTION
1. CHECK ENGINE OIL QUALITY
Check the oil for deterioration, entry of water, discoloring or thin-
ning.
If the quality is visibly poor, replace the oil.
Oil grade:
API grade or SJ, Energy±Conserving or ILSAC multi-
grade engine oil is recommended. SAE 5W±30 is the
best choice for your vehicle, for good fuel economy,
and good starting in cold weather.
2. CHECK ENGINE OIL LEVEL
After warming up the engine and then 5 minutes after the en-
gine stop, oil level should be between the ºLº and ºFº marks on
the dipstick.
If low. check for leakage and add oil up to the ºFº mark.
NOTICE:
Do not fill with engine oil above the ºFº mark.
3. REMOVE OIL PRESSURE SWITCH, AND INSTALL OIL
PRESSURE GAUGE
(a) Remove the oil pressure switch.
(b) Install the oil pressure gauge.
4. ACTIVATE INSPECTION MODE AND WARM UP EN-
GINE (See page IN±10)
Allow the engine to warm up to normal operating temperature.
5. CHECK OIL PRESSURE
Oil pressure:
At idle speed
29 kPa (0.3 kgf/cm
2, 4.3 psi) or more
At 2,250 rpm
150 ± 550 kPa (1.5 ± 5.6 kgf/cm
2, 22 ± 80 psi)
6. REMOVE OIL PRESSURE GAUGE AND REINSTALL
OIL PRESSURE SWITCH
(a) Remove the oil pressure gauge.