Acura 2011 MDX User Manual Page 585
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Onboard Refueling Vapor
Recovery
The onboard refueling vapor
recovery (ORVR) system captures
the fuel vapors during refueling. The
vapors are adsorbed in a canister
filled with activated carbon. While
driving, the fuel vapors are drawn
into the engine and burned off.
Exhaust Emissions Controls
The exhaust emissions controls
include four systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way catalytic
converter. These four systems work
together to control the engine's
combustion and minimize the
amount of HC, CO, and NOx that
come out the tailpipe. The exhaust
emissions control systems are
separate from the crankcase and
evaporative emissions control
systems.
PGM-FI System
The PGM-FI system uses sequential
multiport fuel injection. It has three
subsystems: air intake, engine
control, and fuel control. The
powertrain control module (PCM)
uses various sensors to determine
how much air is going into the
engine. It then controls how much
fuel to inject under all operating
conditions.
Ignition Timing Control System
This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
Exhaust Gas Recirculation (EGR)
System
The exhaust gas recirculation (EGR)
system takes some of the exhaust
gas and routes it back into the intake
manifold. Adding exhaust gas to the
air/fuel mixture reduces the amount
of NOx produced when the fuel is
burned.
Three Way Catalytic Converter
The three way catalytic converter is
in the exhaust system. Through
chemical reactions, it converts HC,
CO, and NOx in the engine's exhaust
to carbon dioxide (CO
2), nitrogen
(N
2), and water vapor.
Replacement Parts
The emissions control systems are
designed and certified to work
together in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Acura replacement parts or their
equivalent for repairs. Using lower
quality parts may increase the
emissions from your vehicle.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more
information.
Emissions Controls
581
Technical Information
10/06/29 11:59:04 11 ACURA MDX MMC North America Owner's M 50 31STX640 enu
2011 MDX
- Introduction 1
- A Few Words About Safety 3
- Contents 5
- Overview of Contents 6
- Your Vehicle at a Glance 7
- 2011 MDX 10
- Protecting Adults and Teens 16
- U.S. Models 45
- Canadian Models 45
- Selecting a Child Seat 51
- Installing a Child Seat 52
- Protecting Larger Children 60
- Carbon Monoxide Hazard 64
- U.S. models 66
- U.S. models Canadian models 66
- Canadian models 66
- Safety Labels 66
- Instruments and Controls 67
- Control Locations 68
- Instrument Panel 69
- Instrument Panel Indicators 70
- Multi-Information Display 100
- Windshield Wipers and Washers 129
- Turn Signal and Headlights 132
- Instrument Panel Brightness 136
- Steering Wheel Adjustments 137
- Keys and Locks 139
- Immobilizer System 141
- Door Locks 143
- Door Locks, Tailgate 144
- Tailgate 146
- Remote Transmitter 148
- Seat Heaters 160
- Power Windows 163
- Power Windows, Moonroof 165
- Moonroof 166
- Parking Brake, Mirrors 167
- Interior Lights 172
- Interior Convenience Items 175
- Features 183
- FRONT CONTROL PANEL 184
- REAR CONTROL PANEL 184
- Climate Control System 184
- Audio System 194
- Playing the XM 199
- Protecting Your Discs 248
- Playing an iPod 279
- Bluetooth 299
- AM/FM Radio Reception 304
- Remote Audio Controls 306
- Auxiliary Input Jack 308
- Radio Theft Protection 309
- Rear Entertainment System 311
- Security System, Compass 342
- Cruise Control 346
- Adaptive Cruise Control (ACC) 349
- HomeLink 364
- Universal Transceiver 364
- AcuraLink 403
- (U.S. models only) 403
- Before Driving 421
- Service Station Procedures 423
- Fuel Economy 427
- Accessories and Modifications 430
- Carrying Cargo 432
- Driving Guidelines 438
- Preparing to Drive 439
- Starting the Engine 440
- Automatic Transmission 443
- ) System 450
- Anti-lock Brakes (ABS) 460
- Vehicle Stability Assist (VSA 471
- Active Damper System 483
- Towing a Trailer 485
- Trailer Stability Assist 497
- Maintenance 503
- Maintenance Safety 504
- Maintenance Minder 506
- Fluid Locations 513
- Engine Compartment Cover 514
- Adding Engine Oil 515
- Engine Coolant 518
- Automatic Transmission Fluid 521
- Brake Fluid 523
- Floor Mats 533
- Wiper Blades 534
- Checking the Battery 545
- Vehicle Storage 546
- Taking Care of the Unexpected 547
- Compact Spare Tire 548
- Changing a Flat Tire 549
- Jump Starting 557
- If the Engine Overheats 558
- Brake System Indicator 562
- If Your Vehicle Gets Stuck 571
- Technical Information 573
- Identification Numbers 574
- Tire Labeling 580
- Date of manufacture 581
- Emissions Controls 584
- 2), nitrogen 585
- 2), and water vapor 585
- Three Way Catalytic Converter 586
- Emissions Testing 587
- Warranty and Client Relations 589
- Client Service Information 590
- Warranty Coverages 591
- Reporting Safety Defects 592
- Service Information Summary 606
- Owner's Identification 607
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