2011 Nissan Sentra Service Repair Manual by 1631132

QUICK REFERENCE INDEX Edition: July 2010 Revision: July 2010 Publication No. SM1E-1B16U0

A GENERAL INFORMATION

General Information

B ENGINE

Engine Mechanical

Engine Lubrication System

Engine Cooling System

Engine Control System

Fuel System

Exhaust System

ACC

TRANSMISSION/ TRANSAXLE

D DRIVELINE/AXLE E SUSPENSION

F BRAKES

G STEERING H RESTRAINTS I

BODY

J AIR CONDITIONER K ELECTRICAL

L MAINTENANCE

Accelerator Control System

Clutch

Manual Transaxle

CVT

FAX

Front Axle

RAX

Rear Axle

FSU

Front Suspension

RSU

Rear Suspension

Road Wheels & Tires

Brake System

Parking Brake System

BRC

Brake Control System

Power Steering System

STC

Steering Control System

Seat Belts

SRS

Supplemental Restraint System (SRS)

Body, Lock & Security System

Glasses, Window System & Mirrors

Roof

Exterior & Interior

Instrument Panel

Seat

MTC

Manual Air Conditioner

Starting & Charging System

Lighting System

Driver Information System

Wiper, Washer & Horn

BCS

Body Control System

LAN

LAN System

Audio Visual, Navigation & Telephone System

ACS

Auto Cruise Control System

Power Supply, Ground & Circuit Elements

Maintenance

Â© 2010 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. -1

A B C D E F G H I J K L M

This manual contains maintenance and repair procedures for the 2011 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 specifications 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 vehicleâ&#x20AC;&#x2122;s safety will be jeopardized by the service method selected.

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QUICK REFERENCE INDEX: SENTRA 2011

QUICK REFERENCE INDEX: SENTRA Engine Tune-up Data: MR20DE

INFOID:0000000006708607

GENERAL SPECIFICATIONS Engine type

MR20DE

Cylinder arrangement

In-line 4 cm3 (cu in)

Displacement Bore and stroke

mm (in)

1,997 (121.86) 84.0 x 90.1 (3.307 x 3.547)

Valve arrangement

DOHC

Firing order

1-3-4-2

Number of piston rings

Compression

Oil

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)

DRIVE BELT Tension of drive belt

Auto adjustment by auto-tensioner

SPARK PLUG Unit: mm (in)

Application

Except for California

For California

NGK

Denso

PLZKAR6A-11

FXE20HR-11

Make Standard type* Spark plug gap

Nominal: 1.1 (0.043)

*: Always check with the Parts Department for the latest parts information

Engine Tune-up Data: QR25DE

INFOID:0000000006708606

GENERAL SPECIFICATIONS Model

SE-R

Cylinder arrangement

In-line 4

Displacement cm3 (in3) Bore and stroke

SE-R Spec V

2,488 (151.82)

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 ratio

Compression

Oil

1 9.5:1

10.5:1

QUICK REFERENCE INDEX: SENTRA 2011 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

PBIC0187E

Unit: degree a

224°

244°

0°

64°

3°

41°

DRIVE BELTS Tension of drive belts

Auto adjustment by auto tensioner

SPARK PLUG Unit: mm (in)

Make

NGK

Type*

Standard

DILKAR6A-11

Gap (nominal)

1.1 (0.043)

*: Always check with the Parts Department for the latest parts information

Front Wheel Alignment (Unladen*)

INFOID:0000000006708605

Engine

MR20DE QR25DE

QR25DE

Model

2.0, 2.0 S, 2.0 SR, 2.0 SL SE-R

SE-R SPEC-V

Minimum

-0° 37′ (-0.62°)

-0° 42′ (-0.70°)

Nominal

Camber Degree minute (Decimal degree)

LH - RH

-0° 10′ (-0.17°)

-0° 15′ (-0.25°)

Maximum

0° 29′ (0.48°)

0° 24′ (0.40°)

Minimum

-0° 49′ (-0.82°)

-0° 54′ (-0.90°)

Nominal

-0° 10′ (-0.17°)

-0° 15′ (-0.25°)

Maximum

0° 17′ (0.28°)

0° 12′ (0.20°)

Minimum

-0° 22′ (-0.37°)

Nominal

0° 0′ (0.0°)

0° 46′ (0.77°)

Maximum

QUICK REFERENCE INDEX: SENTRA 2011 LH

Caster Degree minute (Decimal degree)

LH - RH

Minimum

4° 15′ (4.25°)

4° 30′ (4.50°)

Nominal

4° 48′ (4.80°)

5° 3′ (5.05°)

Maximum

5° 21′ (5.35°)

5° 36′ (5.60°)

Minimum

4° 29′ (4.48°)

4° 44′ (4.73°)

Nominal

5° 02′ (5.03°)

5° 17′ (5.28°)

Maximum

5° 35′ (5.58°)

5° 50′ (5.83°)

Minimum

-0° 48′ (-0.80°)

-0°48′(-0.80°)

Nominal

-0° 14′ (-0.23°)

0° 20′ (0.33°)

10° 58′ (10.97°)

11° 13′ (11.22°)

11° 12′ (11.20°)

11° 27′ (11.45°)

Minimum

-1.0 mm (-0.04 in)

-1 mm (-0.04 in)

Nominal

0.0 mm (0.00 in)

0 mm (0.00 in)

Maximum

1.0 mm (0.04 in)

1 mm (0.04 in)

Maximum Kingpin inclination Degree minute (Decimal degree)

SFA234AC

Distance (A - B) Toe-in Angle (left or right, each side) Degree minute (Degree)

Minimum

-0° 2′ 42" (-0.05°)

Nominal

0° 0′ 0" (0.00°)

0° 00′ (0.00°)

Maximum

0° 2’ 42" (0.05°)

0° 2′ 42" (0.05°)

*: Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.

Rear Wheel Alignment (Unladen*)

INFOID:0000000006708603

SEIA0363E

Model Camber Degree minute (Decimal degree)

2.0, 2.0 S, 2.0 SR, 2.0 SL

SE-R

SE-R SPEC-V

Minimum

– 2° 00′ (– 2.00°)

Nominal

– 1° 30′ (– 1.50°)

Maximum

– 1° 00′ (– 1.00°)

QUICK REFERENCE INDEX: SENTRA 2011 Distance (A - B) Toe-in

Angle left side or right side Degree minute (Decimal degree)

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)

6.0 mm (0.236 in)

7.0 mm (0.276 in)

Minimum

– 0° 8′ 30" (– 0.14°)

– 0° 5′ 30" (– 0.09°)

– 0° 3′ 0" (– 0.05°)

Nominal

0° 3′ 0" (0.05°)

0° 5′ 30" (0.09°)

0° 8′ 30" (0.14°)

Maximum

0° 14′ 0" (0.23°)

0° 17′ 0" (0.28°)

0° 19′ 0" (0.32°)

*: Fuel, engine coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.

Wheelarch Height (Unladen*)

INFOID:0000000006708604

LEIA0085E

Engine

MR20DE

Tire Size

QR25DE

P205/60HR15

P205/55HR16

P225/45VR17

P225/45WR17

Front (Hf) mm (in)

689 (27.13)

692 (27.24)

690 (27.17)

679 (26.73)

Rear (Hr) mm (in)

688 (27.09)

692 (27.24)

690 (27.17)

677 (26.65)

*: Fuel, radiator coolant and engine oil full. Spare tire, jack, hand tools and mats in designated positions.

Brake Specifications

INFOID:0000000006708601

Unit: mm (in)

MR20DE

Applied model Front disc brake

Brake model Cylinder bore diameter Pad thickness Rotor outer diameter × thickness

Rear disc brake

Rear drum brake

Base, S, SR, SL

SE-R

SE-R SPEC-V

CLZ25VB

CLZ25VJ

AD25V

57.2 (2.252)

57.15 (2.250)

11 (0.433)

280 × 24.0 (11.02 × 0.945)

296 × 26.0 (11.65 × 1.024)

320 × 28.0 (12.60 × 1.102)

Brake model

—

AD9A/DS17

Cylinder bore diameter

—

34.93 (1.375)

Pad thickness

—

8.5 (0.335)

Rotor outer diameter × thickness

—

292 × 9.0 (11.50 × 0.354)

Brake model Cylinder bore diameter Lining Length × width × thickness Drum inner diameter

Master cylinder

QR25DE

Cylinder bore diameter

LT23E

—

19.05 (0.750)

—

194.1 × 35 × 2.9 (7.642 × 1.378 × 0.114)

—

228.6 (9.000)

—

23.81 (0.937)

QUICK REFERENCE INDEX: SENTRA 2011 Brake booster

Booster model

C255

Diaphragm diameter

255 (10.04)

Recommended brake fluid

DOT 3

Brake Pedal

INFOID:0000000006708602

Unit: mm (in)

AWFIA0557ZZ

Brake pedal height (H) (from dash lower panel top surface) Brake pedal full stroke (S)

164.0 - 174.0 (6.46 - 6.85) 135.1 (5.32)

Clearance between pedal stopper bracket and threaded end of the stop lamp switch (C1) and ASCD cancel switch (C2), if equipped.

0.74 - 1.96 (0.0291 - 0.0772)

Front Disc Brake

INFOID:0000000006708598

CLZ25VB Unit: mm (in)

Brake pad

Disc rotor

Standard thickness (new)

11 (0.433)

Repair limit thickness

2.0 (0.079)

Standard thickness (new)

24.0 (0.945)

Repair limit thickness

22.0 (0.866)

Runout limit Maximum uneven wear (measured at 8 positions)

0.035 (0.0014) 0.02 (0.0008) or less

CLZ25VJ Unit: mm (in)

Brake pad

Standard thickness (new)

11 (0.433)

Repair limit thickness

2.0 (0.079)

QUICK REFERENCE INDEX: SENTRA 2011

Disc rotor

Standard thickness (new)

26.0 (1.024)

Repair limit thickness

24.0 (0.945)

Runout limit

0.035 (0.0014)

Maximum uneven wear (measured at 8 positions)

0.02 (0.0008) or less

AD25V Unit: mm (in)

Brake pad

Disc rotor

Standard thickness (new)

11 (0.433)

Repair limit thickness

2.0 (0.079)

Standard thickness (new)

28.0 (1.102)

Repair limit thickness

26.0 (1.024)

Runout limit

0.035 (0.0014)

Maximum uneven wear (measured at 8 positions)

0.02 (0.0008) or less

Rear Disc Brake

INFOID:0000000006708599

AD9A/DS17 Unit: mm (in)

Brake pad

Standard thickness (new)

8.5 (0.335)

Repair limit thickness

2.0 (0.079)

Standard thickness (new)

9.0 (0.354)

Repair limit thickness Disc rotor

8.0 (0.315)

Runout limit

0.07 (0.0028)

Maximum uneven wear (measured at 8 positions)

0.015 (0.0006) or less

Rear Drum Brake

INFOID:0000000006708600

LT23E Unit: mm (in)

Brake lining

Drum

Standard thickness (new)

2.9 (0.114)

Repair limit thickness

1.5 (0.059)

Standard inner diameter (new)

228.6 (9.000)

Repair limit inner diameter

230.0 (9.055)

Fluids and Lubricants: MR20DE Description

Capacity (Approximate) Liter

US measure

Imp measure

55.0

14 1/2 gal

12 1/8 gal

With oil filter change

3.9

4 1/8 qt

3 3/8 qt

Without oil filter change

3.6

3 7/8 qt

3 1/8 qt

Fuel Engine oil Drain and refill

INFOID:0000000006708596

Dry engine (engine overhaul)

4.4

4 5/8 qt

3 7/8 qt

Cooling system (with reservoir at MAX level)

7.0

7 3/8 qt

6 1/8 qt

Manual transaxle fluid (MTF)

2.0

4 1/4 pt

3 1/2 pt

CVT fluid

7.3

7 3/4 qt

6 3/8 qt

Brake and clutch fluid

—

Multi-purpose grease

—

QUICK REFERENCE INDEX: SENTRA 2011 Description

Capacity (Approximate) Liter

US measure

Imp measure

Fuel

55.0

14 1/2 gal

12 1/8 gal

Windshield washer fluid

3.5

3 3/4 qt

3 1/8 qt

0.50 ± 0.025 kg

1.10 ± 0.055 lb

5.03 fl oz

5.3 fl oz

Air conditioning system refrigerant Air conditioning system oil

150 m

Fluids and Lubricants: QR25DE

INFOID:0000000006708597

Capacity (Approximate)

Description

Liter

US measure

Imp measure

55.0

14 1/2 gal

12 1/8 gal

With oil filter change

4.3

4 1/2 qt

3 3/4 qt

Without oil filter change

4.0

4 1/4 qt

3 1/2 qt

5.1

5 3/8 qt

4 1/2 qt

M/T models

6.9

7 1/4 qt

6 1/8 qt

CVT models

7.1

7 1/2 qt

6 1/4 qt

Manual transaxle fluid (MTF)

1.7

3 5/8 pt

3 pt

CVT fluid

7.5

7 7/8 qt

6 5/8 qt

Brake and clutch fluids

—

Fuel Engine oil Drain and refill Dry engine (engine overhaul) Cooling system (with reservoir at MAX level)

Multi-purpose grease

—

Windshield washer fluid

3.5

3 3/4 qt

3 1/8 qt

0.50 ± 0.025 kg

1.10 ± 0.055 lb

5.03 fl oz

5.3 fl oz

Air conditioning system refrigerant Air conditioning system oil

150 m

GENERAL INFORMATION

SECTION

GENERAL INFORMATION

CONTENTS SERVICE INFORMATION ............................ 2

How to Check Terminal ...........................................23 How to Perform Efficient Diagnosis for an Electrical Incident ..............................................................26 Control Units and Electrical Parts ............................33

PRECAUTIONS ................................................... 2 Description ................................................................ 2 Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER" ................................................................... 2 Precaution Necessary for Steering Wheel Rotation After Battery Disconnect ..................................... 2 General Precaution ................................................... 3 Precaution for Three Way Catalyst ........................... 4 Precaution for Fuel (Unleaded Regular Gasoline Recommended) MR20DE and QR25DE Except SE-R Spec-V ............................................................. 4 Precaution for Fuel (Unleaded Premium Gasoline Required) QR25DE SE-R Spec-V Only .................... 5 Precaution for Multiport Fuel Injection System or Engine Control System ............................................. 5 Precaution for Hoses ................................................. 5 Precaution for Engine Oils ........................................ 6 Precaution for Air Conditioning ................................. 7

HOW TO USE THIS MANUAL ............................ 8 Description ................................................................ 8 Terms ........................................................................ 8 Units .......................................................................... 8 Contents .................................................................... 8 Relation between Illustrations and Descriptions ...... 9 Component ................................................................ 9 How to Follow Trouble Diagnosis ............................ 10 How to Read Wiring Diagram .................................. 14 Abbreviations .......................................................... 21

CONSULT-III CHECKING SYSTEM ................. 36 Description ...............................................................36 Function and System Application ............................36 CONSULT-III Data Link Connector (DLC) Circuit....37

LIFTING POINT ................................................. 39

Special Service Tool ................................................39 Garage Jack and Safety Stand and 2-Pole Lift .......39 Board-On Lift ...........................................................40

TOW TRUCK TOWING ..................................... 41 Tow Truck Towing ...................................................41 Vehicle Recovery (Freeing a Stuck Vehicle) ...........41

TIGHTENING TORQUE OF STANDARD BOLTS ............................................................... 43

Tightening Torque Table .........................................43

RECOMMENDED CHEMICAL PRODUCTS AND SEALANTS ............................................... 44

Recommended Chemical Product and Sealant .......44

IDENTIFICATION INFORMATION .................... 45 Model Variation ........................................................45 Dimensions ..............................................................48 Wheels & Tires ........................................................48

TERMINOLOGY ................................................ 49

SERVICE INFORMATION FOR ELECTRICAL INCIDENT ...........................................................23

Revision: July 2010

GI-1

SAE J1930 Terminology List ...................................49 P

2011 Sentra

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PRECAUTIONS < SERVICE INFORMATION >

SERVICE INFORMATION PRECAUTIONS Description

INFOID:0000000006150940

Observe the following precautions to ensure safe and proper servicing. These precautions are not described in each individual section.

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"

INFOID:0000000006417975

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 Manual. 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 performed by an authorized NISSAN/INFINITI dealer. • Improper maintenance, including incorrect removal and installation of the SRS can lead to personal 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 WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS WARNING: • When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Ignition ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing serious injury. • When using air or electric power tools or hammers, always switch the Ignition OFF, disconnect the battery, and wait at least 3 minutes before performing any service.

Precaution Necessary for Steering Wheel Rotation After Battery Disconnect INFOID:0000000006150942

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 mechanism 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.

Revision: July 2010

GI-2

2011 Sentra

PRECAUTIONS < SERVICE INFORMATION > 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. GI 3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be rotated. 4. Perform the necessary repair operation. B 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.) C 6. Perform a self-diagnosis check of all control units using CONSULT-III.

General Precaution

INFOID:0000000006150943

• 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 flammable 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 materials. Do not smoke while working on the vehicle.

SGI285

• 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 transaxle/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.

SGI231

• 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.

N SEF289H

• 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. Revision: July 2010

GI-3

SGI233

2011 Sentra

PRECAUTIONS < SERVICE INFORMATION > • 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. • Use approved bonding agent, sealants or their equivalents when required. • Use hand tools, power tools (disassembly only) and recommended special tools where specified for safe and efficient service repairs. • When repairing the fuel, oil, water, vacuum or exhaust systems, check all affected lines for leaks.

PBIC0190E

• Before servicing the vehicle: Protect fenders, upholstery and carpeting with appropriate covers. Take caution that keys, buckles or buttons do not scratch paint.

SGI234

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 CVT sections.

Precaution for Three Way Catalyst

INFOID:0000000006150944

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.

Precaution for Fuel (Unleaded Regular Gasoline Recommended) MR20DE and QR25DE Except SE-R Spec-V

INFOID:0000000006150945

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 specifically 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 Revision: July 2010

GI-4

2011 Sentra

PRECAUTIONS < SERVICE INFORMATION > also affect the warranty coverage validity. Do not use E-85 fuel (85% fuel ethanol, 15% unleaded gasoline) unless the vehicle is specifically designed for E-85 fuel (i.e. Flexible Fuel Vehicle - FFV models). GI

Precaution for Fuel (Unleaded Premium Gasoline Required) QR25DE SE-R Spec-V Only

INFOID:0000000006150946

Use unleaded premium gasoline with an octane rating of at least 91 AKI (Anti-Knock Index) number (Research octane number 96).

If unleaded premium gasoline is not available, unleaded regular gasoline with an octane rating of at least 87 AKI number (Research octane number 91) can be used, but only under the following precautions: • have the fuel tank filled only partially with unleaded regular gasoline, and fill up with unleaded premium gasoline as soon as possible. • avoid full throttle driving and abrupt acceleration. However, for maximum vehicle performance, the use of unleaded premium gasoline is recommended.

CAUTION: Do not use leaded gasoline. Using leaded gasoline will damage the three way catalyst. Do not use E-85 fuel (85% fuel ethanol, 15% unleaded gasoline) unless the vehicle is specifically designed for E-85 fuel (i.e. Flexible Fuel Vehicle - FFV models). Using a fuel other than that specified could adversely affect the emission control devices and systems, and could also affect the warranty coverage validity.

Precaution for Multiport Fuel Injection System or Engine Control System

INFOID:0000000006150947

• 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.

J SGI787

Precaution for Hoses

INFOID:0000000006150948

HOSE REMOVAL AND INSTALLATION

• To prevent damage to rubber hose, do not pry off rubber hose with tapered tool or screwdriver.

SMA019D

Revision: July 2010

GI-5

2011 Sentra