sensor Acura TL 2009 Owner's Guide

The exhaust emissions controls
include f our systems: PGM-FI,
ignition timing control, exhaust gas
recirculation, and three way catalytic
converter. These f our 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 f rom the crankcase and
evaporative emissions control
systems.The emissions control systems are
designed and certif ied 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 f or repairs. Using lower
qualitypartsmayincreasethe
emissions f rom your vehicle.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more informa-
tion.
The PGM-FI system uses sequential
multiport f uel injection.
It has three subsystems: air intake,
engine control, and f uel control. The
powertrain control module (PCM)
uses various sensors to determine
how much air is going into the
engine. It then controls how much
f uel to inject under all operating
conditions. This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
The exhaust gas recirculation (EGR)
system takes some of the exhaust
gas and routes it back into the intake
manif old. Adding exhaust gas to the
air/f uel mixture reduces the amount
of NOx produced when the f uel is
burned.
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 ), nitrogen
(N ), and water vapor.
2
2
Exhaust Emissions Controls Replacement Parts
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic Converter
Emissions Cont rols
624
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2009 TL

ÎÎ Î
..............................
Economy, Fuel .492
............................
Carrying, Cargo .497
.............
CAUTION, Explanation of .iii
..................................
Ceiling Light .209
........................
Certif ication Label .612
...................................
Chains, tires .575
Changing Oil ........................................
How to .548
......................................
When to .535
....................
Changing a Flat Tire .583
...
Charging System Indicator .65,595
............
Checklist, Bef ore Driving .502
................
Childproof Door Locks .147
.....................................
Child Saf ety .37
..............................
Booster Seats .54
...................................
Child Seats .45
..........................................
Inf ants .42
............................
Large Children .53
.........................................
LATCH .47
......................
Risks with Airbags .38
.............................
Small Children .43
.........................................
Tethers .51
.........
Where Should a Child Sit? .38
Cleaning ...................................
Seat Belts .564
..........
Client Service Inf ormation .630
...............
Climate Control System .214 ..............................................
Clock .377
..................
CO in the Exhaust .57,624
.......................
Compact Spare tire .582
.........................................
Compass .382
.................
Console Compartment .205
...............
Consumer Inf ormation .630
.............
Controls, Instruments and .61
Coolant
........................................
Adding .550
....................................
Checking .491
.........................
Proper Solution .550
...................
Temperature Gauge .76
Crankcase Emissions Control ........................................
System .623
................
Cruise Control Indicator .72
............
Cruise Control Operation .386
...................................
Cup Holders .203
..........
Customer Relations Of f ice .630
...............
DANGER, Explanation of .iii
...................................
Dashboard .3,62
..............
Daytime Running Lights .136
.
Daytime Running Light Indicator .72
.........
Def ects, Reporting Saf ety .632 ..............
Def ogger, Rear Window .139
..............
Def rosting the Windows .219
....................................
Dimensions .614
.............
Dimming the Headlights .133
Dipstick
..........
Automatic Transmission .553
..................................
Engine Oil .490
........................
Directional Signals .133
........
Disc Brake Wear Indicators .520
.................................
Disc Changer .240
...
Disc Changer Error Messages .250
.....................
Disposal of Used Oil .550
Doors ........
Door Lock Sensor Button .170
.................
Monitor Indicator .11,88
....................
Power Door Locks .146
........
DOT Tire Quality Grading .617
...........
Driver and Passenger Safety .5
...........................................
Driving .501
....................................
Economy .492
Driving Position Memory ........................................
System .164
Index
D
E
II
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2009 TL

Unexpected, Taking Care..........................................
of the .581
....
Unif orm Tire Quality Grading .617
........................
Unleaded Gasoline .486
.......
Used Oil, How to Dispose of .550
........
Temperature, Inside Sensor .222
..............
Tether Anchorage Points .51
..
Three Way Catalytic Converter .625
................
Tilt the Steering Wheel .140
..........................
Time, Setting the .377
....................................
Tire Chains .575
.........
Tire, How to Change a Flat .583
Tire Pressure Monitoring
....................................
System .526
Low Tire Pressure/TPMS ...........................
Indicator .69,526
..............
TPMS System Failure .529
Tire Pressure Monitoring System ...................................
Messages .527
...............................................
Tires .568
..............................
Air Pressure .568
.........................
Checking Wear .571
..........................
Compact Spare .582
......
DOT Tire Quality Grading .617
......................................
Inf lation .568
..................................
Inspection .571
...................................
Replacing .574
......................................
Rotating .573
...........................................
Snow .575
............................
Specif ications .616
.............................
Summer Tire .575.......................
Traction Devices .575
..........................
Winter Driving .575
...................
Tools, Tire Changing .583
Torque Distribution Monitor
...............................
(SH-AWD
) .517
Towing .....................................
A Trailer .531
................
Emergency Wrecker .606
...........................
Traction Devices .575
Transmission Checking Fluid Level, ..............................
Automatic .553
.
Checking Fluid Level Manual .555
..................
Fluid Selection .554,555
..............
Identif ication Number .612
.............
Shif ting the Automatic .508
.....................................
Treadwear .617
................................
Trip Computer .82
.......................................
Trip Meter .81
..............................................
Trunk .148
......
Emergency Trunk Release .150
...............................
Opening the .148
.............
Open Monitor Light .11,88
..................................
Turn Signals .133.................
Vehicle Capacity Load .498
......................
Vehicle Dimensions .614
VEHICLE OFF Mode ...........................
(Power Mode) .178
....
Vehicle Identif ication Number .612
Vehicle Stability Assist (VSA
),
aka Electronic Stability ....
Control (ESC), System .523
........
VSA System Indicator .68,523
...
VSA Activation Indicator .68,523
.........................
VSA Of f Switch .524
.............................
Vehicle Storage .578
.................................................
VIN .612
..................................
Viscosity, Oil .548
Index
U
V
VIII
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2009 TL