2009 Acura TL catalytic converter

This shows how much f uel you
have. It may show slightly more
or less than the actual amount.
The needle returns to the
bottom after you turn off the
ignition/power mode.
Fuel Gauge
Gauges
Inst rument s and Cont rols
75
SPEEDOMETER
TEMPERATURE
GAUGE
U.S. model is shown. TACHOMETER
FUEL GAUGE
MULTI-INFORMATION DISPLAY
Avoid driving with an extremely low
f uel level. Running out of f uel could
cause the engine to misf ire, damaging
the catalytic converter.
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2009 TL

Always use the parking brake when
you park your vehicle. Make sure
the parking brake is set f irmly, or
your vehicle may roll if it is parked
on an incline.
If your vehicle has an automatic
transmission, set the parking brake
bef ore you put the transmission in
Park. This keeps the vehicle f rom
moving and putting pressure on the
parking mechanism in the
transmission.Make sure the moonroof and the
windows are closed.
Turn of f the lights.
Place any packages, valuables, etc.,
in the trunk or take them with you.
Lock the doors.
If the vehicle is f acing uphill, turn
the front wheels away from the
curb.
Never park over dry leaves, tall
grass, or other f lammable
materials. The hot three way
catalytic converter could cause
these materials to catch on fire.
Check the indicator on the
instrument panel to verif y that the
security system is set.If the vehicle is f acing downhill,
turn the front wheels toward the
curb.
Make sure the parking brake is
f ully released bef ore driving away.
Driving with the parking brake
partially set can overheat or
damage the rear brakes.
If you are unable to stop the
engine normally while in the Park
position, see on page . 184
On models with keyless access system
Parking T ips
Emergency Engine
Stop
Parking
Driving
519
NOTE:
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µ
Thediagramsinthissectiongive
you the dimensions and capacities of
your vehicle and the locations of the
identif ication numbers. It also
includes inf ormation you should
know about your vehicle’s tires and
emissions control systems. ................
Identif ication Numbers .612
................................
Specif ications .614
DOT Tire Quality Grading ..........................
(U.S. Vehicles) .617
.................................
Tire Labeling .619
Tire Pressure Monitoring System (TPMS) Required Federal ............................
Explanation .621
.......................
Emissions Controls .623
..
Three Way Catalytic Converter .625
........................
Emissions Testing .626
T echnical Inf ormation
Technical Inf ormation
611
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2009 TL

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

The three way catalytic converter
contains platinum, palladium, and
rhodium. These metals serve as
catalysts, promoting chemical
reactions to convert the exhaust
gasses without af f ecting the metals.
The catalytic converter is ref erred to
as a three-way catalyst, since it acts
on HC, CO, and NOx. A replacement
unit must be an original Acura part
or its equivalent.
The three way catalytic converter
must operate at a high temperature
for the chemical reactions to take
place. It can set on f ire any
combustible materials that come
near it. Park your vehicle away from
high grass, dry leaves, or other
f lammables.A defective three way catalytic
converter contributes to air pollution,
and can impair your engine’s per-
f ormance. Follow these guidelines to
protect your vehicle’s three way
catalytic converter.
Always use unleaded gasoline.
Even a small amount of leaded
gasoline can contaminate the
catalyst metals, making the three
way catalytic converter inef f ective. Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
Keep the engine well maintained.
Three Way Catalytic Converter
Technical Inf ormation
625
THREE WAY CATALYTIC CONVERTER
WARM UP THREE WAY CATALYTIC
CONVERTERS
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Î
Î
CONT INUED
.....................................
Tachometer .75
.
Taking Care of the Unexpected .581
Technical Descriptions
....
DOT Tire Quality Grading .617
.....
Emissions Control Systems .623
Three Way Catalytic
...............................
Converter .625
.......................
Temperature Gauge .76
....................
Temperature, Outside .84
.....................................
Seat Belts .8,20
...............
Additional Information .20
.....................................
Cleaning .564
......................
Lap/Shoulder Belt .21
................................
Maintenance .23
Reminder Light and ................................
Beeper .20,64
...................
System Components .20
...............
Use During Pregnancy .18
..................................
Seat Heaters .193
......................
Seats, Adjusting the .155
............................
Security System .380
..................
Sequential Shif t Mode .514
...............................
Serial Number .612
...........................
Service Intervals .544
...........................
Service Manual .633
.........
Service Station Procedures .488
..........................
Setting the Clock .377
........................
SH-AWD
Indicator .73
.....
Shif t Lever Position Indicator .507
........................
Shif t Lock Release .510
...........................................
Shif ting .508
................................
Side Airbags .9,30
........
Side Airbag Of f Indicator .33,67
......................
Side Curtain Airbags .32
.............................
Signaling Turns .133.....................................
Snow Tires .575
................................
Sound System .223
Spare Tire ......................................
Inf lating .582
....................
Specif ications .582,616
....................
Specif ications Charts .614
................................
Speed Control .386
..........
SRS, Additional Inf ormation .24
...
Additional Safety Precautions .36
....................
Airbag Components .24
.............................
Airbag Service .35
How the SRS Indicator .......................................
Works .32
How Your Front Airbags .........................................
Work .26
...
How Your Side Airbags Work .30
How Your Side Curtain Airbags
.........................................
Work .32
.............................
SRS Indicator .32,67
..
START (Ignition Key Position) .145
......
START Mode (Power Mode) .178
...........
Start/Stop Button, Engine .178
..............
Starting the Engine .503,506
................
With a Dead Battery .591
..............
State Emissions Testing .623
........
Steam Coming f rom Engine .593 Steering Wheel
................................
Adjustment .140
...........
Anti-thef t Column Lock .145
...................
Stereo Sound System .223
....................
Storing Your Vehicle .578
........................
Sunglasses Holder .207
Super Handling All-Wheel Drive ......................
(TM) (SH-AWD
). 73
....
Supplemental Restraint System .24
......................................
Servicing .35
...............................
SRS Indicator .34
...................
System Components .24
Index
INDEX
T
VII
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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