2007 nissan sentra service repair manual

-1
QUICK REFERENCE INDEX
A GENERAL INFORMATION GI General Information
B ENGINE EM Engine Mechanical
LU Engine Lubrication System
CO Engine Cooling System
EC Engine Control System
FL Fuel System
EX Exhaust System
ACC Accelerator Control System
C TRANSMISSION/
TRANSAXLE
CL Clutch
MT Manual Transaxle
CVT CVT
D DRIVELINE/AXLE FAX Front Axle
RAX Rear Axle
E SUSPENSION FSU Front Suspension
RSU Rear Suspension
WT Road Wheels & Tires
F BRAKES BR Brake System
PB Parking Brake System
BRC Brake Control System
G STEERING PS Power Steering System
STC Steering Control System
H RESTRAINTS SB Seat Belts
SRS Supplemental Restraint System (SRS)
I BODY BL Body, Lock & Security System
GW Glasses, Window System & Mirrors
RF Roof
EI Exterior & Interior
IP Instrument Panel
SE Seat
J AIR CONDITIONER MTC Manual Air Conditioner
K ELECTRICAL SC Starting & Charging System
LT Lighting System
DI Driver Information System
WW Wiper, Washer & Horn
BCS Body Control System
LAN LAN System
AV Audio Visual, Navigation & Telephone System
ACS Auto Cruise Control System
PG Power Supply, Ground & Circuit Elements
L MAINTENANCE MA Maintenance
M INDEX IDX Alphabetical Index
Edition: September 2006
Revision: December 2006
Publication No. SM7E-1B16U1
B
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© 2006 NISSAN NORTH AMERICA, INC.
All rights reserved. No part of this Service Manual may be reproduced or stored in a retrieval system, or transmitted in any
form, or by any means, electronic, mechanical, photo-copying, recording or otherwise, without the prior written permission
of Nissan North America, Inc.
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This manual contains maintenance and repair procedures for the
2007 NISSAN SENTRA.
In order to assure your safety and the efficient functioning of the vehicle,
this manual should be read thoroughly. It is especially important that the
PRECAUTIONS in the GI section be completely understood before starting
any repair task.
All information in this manual is based on the latest product information
at the time of publication. The right is reserved to make changes in specifi-
cations and methods at any time without notice.
IMPORTANT SAFETY NOTICE
The proper performance of service is essential for both the safety of
the technician and the efficient functioning of the vehicle.
The service methods in this Service Manual are described in such a
manner that the service may be performed safely and accurately.
Service varies with the procedures used, the skills of the technician
and the tools and parts available. Accordingly, anyone using service
procedures, tools or parts which are not specifically recommended
by NISSAN must first be completely satisfied that neither personal
safety nor the vehicle’s safety will be jeopardized by the service
method selected.

QUICK REFERENCE CHART: SENTRA 2007
QUICK REFERENCE CHART: SENTRA PFP:00000
Engine Tune-Up Data - MR20DE ELS002B5
General Specifications
Valve Timing
Unit: degree
( ): Valve timing control “ON”
Engine type MR20DE
Cylinder arrangement In-line 4
Displacement
cm3
(in3
)
1,997 (121.86)
Bore and stroke
mm (in)
84.0 x 90.1 (3.307 x 3.547)
Valve arrangement DOHC
Firing order 1-3-4-2
Number of piston rings
Compression 2
Oil 1
Compression ratio 10.2
Compression pressure
kPa (bar, kg/cm2
, psi) / 250 rpm
Standard 1,390 (13.9, 14.2, 202)
Minimum 1,140 (11.4. 11.6, 165)
Differential limit between cylinders 100 (1.0, 1.0, 15)
Valve timing
a b c d e f
220 232 -13 (27) 65 (25) 7 33
PBIC4542E

2007
QUICK REFERENCE CHART: SENTRA
Drive Belt Deflection and Tension
Spark Plug
Engine Tune-Up Data - QR25DE ELS002DJ
General Specifications
Drive Belt Deflection and Tension
Spark Plug
Unit: mm (in)
Tension of drive belt Auto adjustment by auto-tensioner
Plug type Platinum-tipped
Make NGK
Standard type PLZKAR6A-11
Spark plug gap Nominal: 1.1 mm (0.043 in)
Cylinder arrangement In-line 4
Displacement cm3
(in3
) 2,488 (151.82)
Bore and stroke mm (in) 89.0 x 100 (3.50 x 3.94)
Valve arrangement DOHC
Firing order 1-3-4-2
Number of piston rings
Compression 2
Oil 1
Compression ratio 9.5:1
Compression pressure
kPa (kg/cm2
, psi) / 250 rpm
Standard 1,250 (12.8, 181.3)
Minimum 1,060 (10.8, 153.7)
Differential limit
between cylinders
100 (1.0, 14)
Valve timing
Unit: degree
a b c d e f
224° 244° 0° 64° 3° 41°
Tension of drive belts Auto adjustment by auto tensioner
PBIC0187E
Make NGK
Type Standard DILKAR6A-11
Gap (nominal) 1.1 (0.043)

2007
Front Wheel Alignment (Unladen*) ELS002B6
*: Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
Rear Wheel Alignment (Unladen*) ELS002B7
*: Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
Engine MR20DE QR25DE
Model 2.0, 2.0 S, 2.0 SL SE-R SE-R SPEC-V
Camber
Degree minute (Decimal degree)
Minimum -0° 55′ (-0.92°) -0° 55′ (-0.92°) -1° 00′ (-1.00°)
Nominal -0° 10′ (-0.17°) -0° 10′ (-0.17°) -0° 15′ (-0.25°)
Maximum 0° 35′ (0.58°) 0° 35′ (0.58°) 0° 30′ (0.50°)
Left and right differ-
ence (RH - LH)
0° 45′ (0.75°) or less 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less
Caster
Minimum 4° 10′ (4.17°) 4° 15′ (4.25°) 4° 25′ (4.42°)
Nominal 4° 55′ (4.92°) 5° 00′ (5.00°) 5° 10′ (4.17°)
Maximum 5° 40′ (5.67°) 5° 45′ (5.75°) 5° 55′ (5.92°)
Left and right differ-
ence (RH - LH)
0° 45′ (0.75°) or less 0° 45′ (0.75°) or less 0° 45′ (0.75°) or less
Kingpin inclination
11° 05′ (11.08°) 11° 05′ (11.08°) 11° 20′ (11.33°)
Total toe-in
Distance (A - B)
Minimum -1 mm (-0.04 in) -1 mm (-0.04 in) -1 mm (-0.04 in)
Nominal 0 mm (0.00 in) 0 mm (0.00 in) 0 mm (0.00 in)
Maximum 1 mm (0.04 in) 1 mm (0.04 in) 1 mm (0.04 in)
Angle (left or right,
each side)
Degree minute
(Degree)
Minimum -0° 02′ (-0.03°) -0° 02′ (-0.03°) -0° 02′ (-0.03°)
Nominal 0° 00′ (0.00°) 0° 00′ (0.00°) 0° 00′ (0.00°)
Maximum 0° 02′ (0.03°) 0° 02′ (0.03°) 0° 02′ (0.03°)
SFA234AC
Model 2.0, 2.0 S, 2.0 SL SE-R SPEC-V
Camber
Degree minute (Decimal
degree)
Minimum – 2° 00′ (– 2.00°) – 2° 00′ (– 2.00°) – 2° 00′ (– 2.00°)
Nominal – 1° 30′ (– 1.50°) – 1° 30′ (– 1.50°) – 1° 30′ (– 1.50°)
Maximum – 1° 00′ (– 1.00°) – 1° 00′ (– 1.00°) – 1° 00′ (– 1.00°)
Total toe-in Distance (A - B)
Minimum – 3.0 mm ( – 0.118 in) – 2.0 mm ( – 0.079 in) – 1.0 mm (– 0.039 in)
Nominal 1.0 mm (0.039 in) 2.0 mm (0.079 in) 3.0 mm (0.118 in)
Maximum 5.0 mm (0.197 in) 4.0 mm (0.157 in) 7.0 mm (0.276 in)

2007
Wheelarch Height (Unladen*) ELS002B8
*: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.
Brake - General Specifications ELS002B9
Front Disc Brake - Repair Limits ELS002DK
CLZ25VF
Unit: mm (in)
Engine MR20DE QR25DE
Model 2.0 2.0 S, 2.0 SL SE-R SPEC-V
Tire Size P205/60HR15 P205/55HR16 P225/45VR17 P225/45WR17
Front (Hf) mm (in) 691 (27.20) 694 (27.32) 690 (27.17) 679 (26.73)
Rear (Hr) mm (in) 693 (27.28) 696 (27.40) 690 (27.17) 677 (26.65)
LEIA0085E
Applied model
MR20DE QR25DE
Base SE-R SE-R Spec-V
Front disc brake Brake model CLZ25VF CLZ25VJ AD25V
Cylinder bore diameter 57.2 mm (2.252 in) 57.2 mm (2.252 in) 57.15 mm (2.250 in)
Pad thickness 11 mm (0.433 in) 11 mm (0.433 in) 11 mm (0.433 in)
Rotor outer diameter ×
thickness
280 mm × 24.0 mm (11.02
in × 0.945 in)
296 mm × 26.0 mm (11.65
in × 1.024 in)
320 mm × 28.0 mm (12.60
in × 1.102 in)
Rear disc brake Cylinder bore diameter — 34.93 mm (1.375 in)
Pad thickness — 8.5 mm (0.335 in)
Rotor outer diameter ×
thickness
— 292 mm × 9.0 mm (11.50 in × 0.354 in)
Rear drum brake Brake model LT20D — —
Cylinder bore diameter 15.87 mm (0.625 in) — —
Lining
Length × width × thickness
194.1 mm × 30.0 mm ×
4.0 mm
(7.642 in × 1.181 in ×
0.157 in)
— —
Drum inner diameter 228.6 mm (9.000 in) — —
Master cylinder Cylinder bore diameter 22.22 mm (0.875 in)
Control valve Valve model Electric brake force distribution
Brake booster Booster model C255
Diaphragm diameter 255 mm (10.04 in)
Recommended brake fluid Refer to ! Hyper-link Error ! .
Brake pad
Standard thickness (new) 11 (0.433)
Repair limit thickness 2.0 (0.079)

2007
CLZ25VJ
Unit: mm (in)
AD25V
Unit: mm (in)
Rear Disc Brake - Repair Limits ELS002DL
Unit: mm (in)
Rear Drum Brake - Repair Limits ELS002DM
Unit: mm (in)
Disc rotor
Standard thickness (new) 24.0 (0.945)
Runout limit 0.035 (0.0014)
Maximum uneven wear (mea-
sured at 8 positions)
0.02 mm (0.0008 in) or less
Brake pad
Disc rotor
0.02 mm (0.0008 in) or less
Brake pad
Disc rotor
0.02 mm (0.0008 in) or less
Brake pad
Disc rotor
0.015 mm (0.0006 in) or less
Brake model LT20D
Brake lining
Drum
Standard inner diameter (new) 228.6 (9.000)
Repair limit inner diameter 230.0 (9.055)

2007
Brake Pedal ELS002DN
Unit: mm (in)
Refill Capacities ELS002BA
H1 Brake pedal initial height (from dash panel top surface) 164.0 - 174.0 mm (6.45 - 6.85 in)
H2
Brake pedal depressed height (under a force of 490 N (50 kg-f, 110 lb-
f) with the engine running)
—
C
Clearance between the threaded end of stop lamp switch or ASCD
switch, if equipped (2) and brake pedal lever (3).
0.74 - 1.96 mm (0.0291 - 0.0772 in)
A Pedal play 3 - 11 mm (0.12 - 0.43 in)
WFIA0511E
Description
Capacity (Approximate)
Liter US measure Imp measure
Fuel 55.0 14 1/2 gal 12 1/8 gal
Engine oil
Drain and refill
With oil filter change 3.8 4 qt 3 3/8 qt
Without oil filter change 3.6 3 7/8 qt 3 1/8 qt
Dry engine (engine overhaul) 4.4 4 5/8 qt 3 7/8 qt
Cooling system (with reservoir at MAX level) 7.0 1 7/8 gal 1 1/2 gal
Manual transaxle fluid (MTF) 2.0 4 1/4 pt 3 1/2 pt
CVT fluid 8.3 8 3/4 qt 7 1/4 qt
Windshield washer fluid 3.5 3 3/4 qt 3 1/8 qt
Air conditioning system refrigerant 0.50 ± 0.05 kg 1.10 ± 0.11 lb 1.10 ± 0.11 lb
Air conditioning system oil 120 m 5.03 fl oz 5.3 fl oz

2007
Refill Capacities ELS002DO
MR20DE
QR25DE
Description
Fuel 55.0 14 1/2 gal 12 1/8 gal
Engine oil
Drain and refill
With oil filter change 3.8 4 qt 3 3/8 qt
Without oil filter change 3.6 3 7/8 qt 3 1/8 qt
Cooling system
(with reservoir at max level)
7.0 1 7/8 gal 1 1/2 gal
CVT fluid 8.3 8 3/4 qt 7 1/4 qt
Brake and clutch fluid — — —
Multi-purpose grease — — —
Air conditioning system oil
120 m 5.03 fl oz 5.3 fl oz
Description
Fuel 55.0 14 1/2 gal 12 1/8 gal
Engine oil
Drain and refill
With oil filter change 4.9 5 1/8 qt 4 3/8 qt
Without oil filter change 4.6 4 7/8 qt 4 qt
Cooling system
(with reservoir at max level)
7.6 2 gal 1 5/8 gal
CVT fluid 8.3 8 3/4 qt 7 1/4 qt
Brake and clutch fluids — — —
Multi-purpose grease — — —
Air conditioning system oil
120 m 5.03 fl oz 5.3 fl oz

GI-1
GENERAL INFORMATION
A GENERAL INFORMATION
CONTENTS
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SECTION GI
Revision: December 2006 2007 Sentra
PRECAUTIONS .....................................................
..... 3
Description ..........................................................
..... 3
Precautions for Supplemental Restraint System
(SRS) “AIR BAG” and “SEAT BELT PRE-TEN-
SIONER” .............................................................
..... 3
PrecautionsNecessaryforSteeringWheelRotation
After Battery Disconnect .....................................
..... 3
OPERATION PROCEDURE ............................
..... 3
General Precautions ...........................................
..... 4
Precautions for Three Way Catalyst ....................
..... 5
Precautions for Fuel (Unleaded Regular Gasoline
Recommended) ...................................................
..... 5
Precautions for Multiport Fuel Injection System or
Engine Control System .......................................
..... 6
Precautions for Hoses .........................................
..... 6
HOSE REMOVAL AND INSTALLATION ..........
..... 6
HOSE CLAMPING ...........................................
..... 6
Precautions for Engine Oils .................................
..... 7
HEALTH PROTECTION PRECAUTIONS ........
..... 7
Precautions for Air Conditioning ..........................
..... 7
HOW TO USE THIS MANUAL ..............................
..... 8
Description ..........................................................
..... 8
Terms ..................................................................
..... 8
Units ....................................................................
..... 8
Contents ..............................................................
..... 8
Relation between Illustrations and Descriptions .
..... 9
Components ........................................................
... 10
SYMBOLS ........................................................
... 10
How to Follow Trouble Diagnoses .......................
....11
DESCRIPTION .................................................
....11
HOW TO FOLLOW TEST GROUPS IN TROU-
BLE DIAGNOSES ............................................
....11
HARNESS WIRE COLOR AND CONNECTOR
NUMBER INDICATION ....................................
... 12
KEY TO SYMBOLS SIGNIFYING MEASURE-
MENTS OR PROCEDURES ............................
... 13
How to Read Wiring Diagrams ............................
... 15
CONNECTOR SYMBOLS ................................
... 15
SAMPLE/WIRING DIAGRAM - EXAMPL - ......
... 16
DESCRIPTION .................................................
... 17
Abbreviations .......................................................
... 23
SERVICE INFORMATION FOR ELECTRICALINCI-
DENT ......................................................................
... 24
How to Check Terminal ........................................
... 24
CONNECTOR AND TERMINAL PIN KIT .........
... 24
HOW TO PROBE CONNECTORS ...................
... 24
How to Perform Efficient Diagnosis for an Electrical
Incident ................................................................
... 27
WORK FLOW ...................................................
... 27
INCIDENT SIMULATION TESTS .....................
... 27
CIRCUIT INSPECTION ....................................
... 30
Control Units and Electrical Parts ........................
... 35
PRECAUTIONS ...............................................
... 35
CONSULT-III CHECKING SYSTEM ......................
... 37
Description ...........................................................
... 37
Function and System Application ........................
... 37
CONSULT-III Data Link Connector (DLC) Circuit... 38
INSPECTION PROCEDURE ...........................
... 39
LIFTING POINT ......................................................
... 40
Special Service Tools ..........................................
... 40
Garage Jack and Safety Stand and 2-Pole Lift ....
... 40
Board-On Lift .......................................................
... 41
TOW TRUCK TOWING ..........................................
... 42
Tow Truck Towing ................................................
... 42
TOWING AN AUTOMATIC TRANSAXLE
MODEL WITH FOUR WHEELS ON GROUND... 42
Vehicle Recovery (Freeing a Stuck Vehicle) ........
... 42
TIGHTENING TORQUE OF STANDARD BOLTS .
... 43
Tightening Torque Table ......................................
... 43
RECOMMENDED CHEMICAL PRODUCTS AND
SEALANTS ............................................................
... 44
Recommended Chemical Products and Sealants... 44
IDENTIFICATION INFORMATION .........................
... 45
Model Variation ....................................................
... 45
IDENTIFICATION NUMBER .............................
... 46
VEHICLE IDENTIFICATION NUMBER
ARRANGEMENT .............................................
... 46
IDENTIFICATION PLATE .................................
... 47
ENGINE SERIAL NUMBER .............................
... 47

GI-2
MANUAL TRANSAXLE NUMBER ....................
... 47
CVT NUMBER ..................................................
... 47
Dimensions ..........................................................
... 48
Wheels & Tires ....................................................
... 48
TERMINOLOGY .....................................................
...49
SAE J1930 Terminology List ................................
...49

PRECAUTIONS
GI-3
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PRECAUTIONS PFP:00001
Description EAS0027H
Observe the following precautions to ensure safe and proper servicing. These precautions are not
described in each individual section.
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER” EAS002EM
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SRS and SB section of this Service Man-
ual.
WARNING:
● To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
● Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
● Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions Necessary for Steering Wheel Rotation After Battery Disconnect
EAS0027K
NOTE:
● This Procedure is applied only to models with Intelligent Key system and NATS (NISSAN ANTI-THEFT
SYSTEM).
● Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK″ position.
● Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing
work. If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery power is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
5. When the repair work is completed, return the ignition switch to the ″LOCK″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of all control units using CONSULT-III.

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GI-4
PRECAUTIONS
General Precautions EAS0027L
● Do not operate the engine for an extended period of time without
proper exhaust ventilation.
Keep the work area well ventilated and free of any flammable
materials. Special care should be taken when handling any flam-
mable or poisonous materials, such as gasoline, refrigerant gas,
etc. When working in a pit or other enclosed area, be sure to
properly ventilate the area before working with hazardous mate-
rials.
Do not smoke while working on the vehicle.
● Before jacking up the vehicle, apply wheel chocks or other tire
blocks to the wheels to prevent the vehicle from moving. After
jacking up the vehicle, support the vehicle weight with safety
stands at the points designated for proper lifting before working
on the vehicle.
These operations should be done on a level surface.
● When removing a heavy component such as the engine or tran-
saxle/transmission, be careful not to lose your balance and drop
them. Also, do not allow them to strike adjacent parts, especially
the brake tubes and master cylinder.
● Before starting repairs which do not require battery power:
Turn off ignition switch.
Disconnect the negative battery terminal.
● If the battery terminals are disconnected, recorded memory of
radio and each control unit is erased.
● Battery posts, terminals and related accessories contain lead
and lead compounds. Wash hands after handling.
● To prevent serious burns:
Avoid contact with hot metal parts.
Do not remove the radiator cap when the engine is hot.
● Dispose of or recycle drained oil or the solvent used for cleaning
parts in an appropriate manner.
● Do not attempt to top off the fuel tank after the fuel pump nozzle
shuts off automatically.
Continued refueling may cause fuel overflow, resulting in fuel
spray and possibly a fire.
● Clean all disassembled parts in the designated liquid or solvent
prior to inspection or assembly.
● Replace oil seals, gaskets, packings, O-rings, locking washers, cotter pins, self-locking nuts, etc. with new
ones.
● Replace inner and outer races of tapered roller bearings and needle bearings as a set.
● Arrange the disassembled parts in accordance with their assembled locations and sequence.
● Do not touch the terminals of electrical components which use microcomputers (such as ECM).
Static electricity may damage internal electronic components.
● After disconnecting vacuum or air hoses, attach a tag to indicate the proper connection.
● Use only the fluids and lubricants specified in this manual.
SGI285
SGI231
SEF289H
SGI233

PRECAUTIONS
GI-5
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● Use approved bonding agent, sealants or their equivalents when required.
● Use hand tools, power tools (disassembly only) and recom-
mended special tools where specified for safe and efficient ser-
vice repairs.
● When repairing the fuel, oil, water, vacuum or exhaust systems,
check all affected lines for leaks.
● Before servicing the vehicle:
Protect fenders, upholstery and carpeting with appropriate cov-
ers.
Take caution that keys, buckles or buttons do not scratch paint.
WARNING:
To prevent ECM from storing the diagnostic trouble codes, do not carelessly disconnect the harness
connectors which are related to the engine control system and TCM (transmission control module)
system. The connectors should be disconnected only when working according to the WORK FLOW of
TROUBLE DIAGNOSES in EC and AT sections.
Precautions for Three Way Catalyst EAS0027M
If a large amount of unburned fuel flows into the catalyst, the catalyst temperature will be excessively high. To
prevent this, follow the instructions.
● Use unleaded gasoline only. Leaded gasoline will seriously damage the three way catalyst.
● When checking for ignition spark or measuring engine compression, make tests quickly and only when
necessary.
● Do not run engine when the fuel tank level is low, otherwise the engine may misfire, causing damage to
the catalyst.
Do not place the vehicle on flammable material. Keep flammable material off the exhaust pipe and the three
way catalyst.
Precautions for Fuel (Unleaded Regular Gasoline Recommended) EAS002DE
Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (research
octane number 91). E-85 fuel (85% fuel ethanol, 15% unleaded gasoline) may only be used in vehicles specif-
ically designed for E-85 fuel (i.e. Flexible Fuel Vehicle - FFV models).
CAUTION:
Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Using a fuel
other than that specified could adversely affect the emission control devices and systems, and could
also affect the warranty coverage validity. Do not use E-85 fuel (85% fuel ethanol, 15% unleaded gaso-
line) unless the vehicle is specifically designed for E-85 fuel (i.e. Flexible Fuel Vehicle - FFV models).
PBIC0190E
SGI234

GI-6
PRECAUTIONS
Precautions for Multiport Fuel Injection System or Engine Control System EAS0027O
● Before connecting or disconnecting any harness connector for
the multiport fuel injection system or ECM:
Turn ignition switch to “OFF” position.
Disconnect negative battery terminal.
Otherwise, there may be damage to ECM.
● Before disconnecting pressurized fuel line from fuel pump to
injectors, be sure to release fuel pressure.
● Be careful not to jar components such as ECM and mass air
flow sensor.
Precautions for Hoses EAS0027P
HOSE REMOVAL AND INSTALLATION
● To prevent damage to rubber hose, do not pry off rubber hose
with tapered tool or screwdriver.
● To reinstall the rubber hose securely, make sure that hose inser-
tion length and orientation is correct. (If tube is equipped with
hose stopper, insert rubber hose into tube until it butts up
against hose stopper.)
HOSE CLAMPING
● If old rubber hose is re-used, install hose clamp in its original
position (at the indentation where the old clamp was). If there is
a trace of tube bulging left on the old rubber hose, align rubber
hose at that position.
● Discard old clamps; replace with new ones.
SGI787
SMA019D
SMA020D
SMA021D

PRECAUTIONS
GI-7
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● After installing plate clamps, apply force to them in the direction
of the arrow, tightening rubber hose equally all around.
Precautions for Engine Oils EAS0027Q
Prolonged and repeated contact with used engine oil may cause skin cancer. Try to avoid direct skin contact
with used oil.
If skin contact is made, wash thoroughly with soap or hand cleaner as soon as possible.
HEALTH PROTECTION PRECAUTIONS
● Avoid prolonged and repeated contact with oils, particularly used engine oils.
● Wear protective clothing, including impervious gloves where practicable.
● Do not put oily rags in pockets.
● Avoid contaminating clothes, particularly underpants, with oil.
● Heavily soiled clothing and oil-impregnated footwear should not be worn. Overalls must be cleaned regu-
larly.
● First aid treatment should be obtained immediately for open cuts and wounds.
● Use barrier creams, applying them before each work period, to help the removal of oil from the skin.
● Wash with soap and water to ensure all oil is removed (skin cleansers and nail brushes will help). Prepa-
rations containing lanolin replace the natural skin oils which have been removed.
● Do not use gasoline, kerosene, diesel fuel, gas oil, thinners or solvents for cleaning skin.
● If skin disorders develop, obtain medical advice without delay.
● Where practical, degrease components prior to handling.
● Where there is a risk of eye contact, eye protection should be worn, for example, chemical goggles or face
shields; in addition an eye wash facility should be provided.
Precautions for Air Conditioning EAS0027R
Use an approved refrigerant recovery unit any time the air conditioning system must be discharged. Refer to
MTC section "HFC-134a (R-134a) Service Procedure", "REFRIGETANT LINES" for specific instructions.
SMA022D

2007 nissan sentra service repair manual

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