2007 Acura TL engine

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 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. 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. This system constantly adjusts the
ignition timing, reducing the amount
of HC, CO, and NOx produced.
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) in
automatic transmission vehicles or
the engine control module (ECM) in
manual transmission vehicles 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.
2
2
Exhaust Emissions Controls Replacement Parts
PGM-FI System
Three Way Catalytic Converter
Exhaust Gas Recirculat ion (EGR)
Syst em
Ignit ion T iming Cont rol Syst em
Emissions Cont rols
346
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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
347
THREE WAY CATALYTIC CONVERTER
WARM UP THREE WAY CATALYTIC
CONVERTERS
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Make sure the gas tank is nearly,
but not completely, f ull (around
3/4).Without touching the accelerator
pedal, start the engine, and let it
idle f or 20 seconds.
If you take your vehicle f or a state
emissions test shortly af ter the
battery has been disconnected or
gone dead, it may not pass the test.
This is because of certain ‘‘readiness
codes’’ that must be set in the on-
board diagnostics f or the emissions
systems. These codes are erased
when the battery is disconnected,
and set again only after several days
of driving under a variety of
conditions. If the testing f acility determines that
the readiness codes are not set, you
will be requested to return at a later
date to complete the test. If you must
get the vehicle retested within the
next two or three days, you can
condition the vehicle f or retesting by
doing the f ollowing.
Keep the vehicle in Park
(automatic transmission) or
neutral (manual transmission).
Increase the engine speed to 2,000
rpm,andholditthereuntilthe
temperature gauge rises to at least
1/4of thescale(about3minutes).
Make sure the ambient
temperature is between 40° and
95°F. Make sure the vehicle has been
parked with the engine of f f or 6
hours or more. Without touching the accelerator
pedal, start the engine, and let it
idle f or 20 seconds.
T esting of Readiness Codes
State Emissions T esting
348
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Select a nearby lightly traveled
major highway where you can
maintain a speed of 50 to 60 mph
(80to97km/h)foratleast20
minutes. Drive on the highway in
D (A/T) or 6th (M/T). Do not use
thecruisecontrol.Whentraffic
allows, drive f or 90 seconds
without moving the accelerator
pedal. (Vehicle speed may vary
slightly; this is okay.) If you cannot
do this f or a continuous 90
seconds because of traf f ic
conditions, drive f or at least 30
seconds, then repeat it two more
times (for a total of 90 seconds).Then drive in city/suburban
traffic for at least 10 minutes.
When traf f ic conditions allow, let
the vehicle coast f or several
seconds without using the
accelerator pedal or the brake
pedal.
If the testing f acility determines the
readiness codes are still not set, see
your dealer. Make sure the vehicle has been
parked with the engine of f f or 30
minutes.
State Emissions T esting
Technical Inf ormation
349
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#
) This manual covers maintenance and recommended
procedures f or repair to engine and chassis components.
It is written f or the journeyman mechanic, but is simple
enough f or most mechanically-inclined owners to under-
stand.
This manual complements the service manual by
providing in-depth troubleshooting inf ormation f or each
electrical circuit in your vehicle.
This manual describes the procedures involved in the
replacement of damaged body parts.
Authorized Manuals
Service Manual:
Electrical T roubleshooting Manual:
Body Repair Manual:
356
NOTE: Dealers and Companies please provide dealer or company name,
and also the name of the person to whose attention the shipment should
be sent. For purchases outside U.S.A. please write to the address shown
below for a quotation.
P.O. BOX 07280·DETROIT, MICHIGAN 48207·1-800-782-4356
Customer Name Attention
Apartment Number
State & Zip Code
City
Daytime Telephone Number
Check or money order enclosed payable to Helm Inc U.S. funds only.
Do not send cash
Master
Card VISA
Check here if your billing address is different
from the shipping address shown above.
Account Number Expiration: Mo. Yr.
CUSTOMER SIGNATURE DATE
Street Address No P.O. Box Number
()
These Publications cannot be returned for credit without receiving advance authorization within 14
days of delivery. On returns, a restocking fee may be applied against the original order.
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CONT INUED
...
Accessories and Modif ications . 240
................................
Accessories .240
............................
Modif ications .241
ACCESSORY (Ignition Key .......................................
Position) .95
............
Accessory Power Sockets . 120
......................................
AcuraLink .217
................
Adding Engine Coolant . 286
........................
Adding Engine Oil .283
....................
Additives, Engine Oil . 284
...............................
Airbag (SRS) . 9, 22
...............
Additional Information . 22
......................................
Servicing .31
...................
System Components . 22
..............
Air Conditioning System . 126
.......................
Air Pressure, Tires .303
......................................
Antif reeze .286
Anti-lock Brakes (ABS) ...............................
Indicator . 60, 262
...................................
Operation .262
..............
Anti-thef t, Audio System . 182
.
Anti-thef t Steering Column Lock . 95
................................
Audio System .133
...
Automatic Lighting Off Feature . 88 ...
Automatic Seat Belt Tensioners . 20
.............
Automatic Speed Control . 184
..............
Automatic Transmission . 253
..........................
Capacity, Fluid .338
...............
Checking Fluid Level . 288
.......................................
Shif ting .253
.
Shif t Lever Position Indicator . 253
.......................................
Shif ting .253
....................
Shif t Lock Release . 258
Battery Charging System ...........................
Indicator . 59, 324
............................
Jump Starting .320
..............................
Maintenance .308
............................
Specif ications .339
..............................
Bef ore Driving .233
....................................
Belts,Seat .8,18
...........................
Beverage Holder .120
Brakes ...........
Anti-lock System (ABS) . 262
.............
Break-in, New Linings . 234
...........................................
Fluid .291
.......................................
Parking .117 .................
System Indicator . 59, 326
........................
Wear Indicators .261
.............................
Braking System .261
.................
Break-in, New Vehicle . 234
..
Brightness Control, Instruments . 89
........................
Brights, Headlights .86
Bulb Replacement ..........................
Back-up Lights .297
.........
Daytime Running Lights . 293
.................................
Fog Lights .295
............................
Specif ications .339
............
Turn Signal Lights . 294, 296
..............................
Bulbs, Halogen .293
............................
Capacities Chart .338
.............
Carbon Monoxide Hazard . 52
............................
Carrying, Cargo .243
Cassette Player ....................................
Care . 154, 175
...........................
Operation . 152, 173
..............
CAUTION, Explanation of . ii
..................................
Ceiling Light .118
Index
A
BC
INDEX
I
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ÎÎ Î........................
Certif ication Label .336
...................................
Chains, tires .307
Changing Oil ........................................
How to .284
......................................
When to .273
....................
Changing a Flat Tire .313
...
Charging System Indicator . 59, 324
............
Checklist, Bef ore Driving . 246
..................
Childproof Door Locks . 98
.....................................
Child Saf ety .33
..............................
Booster Seats .49
...................................
Child Seats .41
..........................................
Inf ants .38
............................
Large Children .48
.........................................
LATCH .43
......................
Risks with Airbags .34
.............................
Small Children .39
.........................................
Tethers .46
.........
Where Should a Child Sit? . 34
Cleaning ...................................
Seat Belts .299
...............
Climate Control System . 131
..............................................
Clock .116
..........................
CO in the Exhaust .52
.......................
Compact Spare tire .312
.........................................
Compass .228 .................
Console Compartment . 121
...............
Consumer Inf ormation . 352
.............
Controls, Instruments and . 55
Coolant ........................................
Adding .286
....................................
Checking .239
.........................
Proper Solution .286
...................
Temperature Gauge . 65
Crankcase Emissions Control ........................................
System .345
................
Cruise Control Indicator . 61
............
Cruise Control Operation . 184
...................................
Cup Holders .120
..........
Customer Relations Of f ice . 352
................
DANGER, Explanation of . ii
...................................
Dashboard . 3, 56
................
Daytime Running Lights . 88
.
Daytime Running Light Indicator . 62
.........
Def ects, Reporting Saf ety . 354
................
Def ogger, Rear Window . 90
..............
Def rosting the Windows . 130
....................................
Dimensions .338
...............
Dimming the Headlights . 86Dipstick
..........
Automatic Transmission . 288
..................................
Engine Oil .238
..........................
Directional Signals .86
........
Disc Brake Wear Indicators . 261
........................
Disc Changer . 145, 165
...
Disc Changer Error Messages . 176
.....................
Disposal of Used Oil .285
Doors .......................
Monitor Indicator .68
......................
Power Door Locks .96
........
DOT Tire Quality Grading . 340
...........
Driver and Passenger Safety . 5
...........................................
Driving .245
....................................
Economy .239
Driving Position Memory ........................................
System .108
..............................
Economy, Fuel .239
............
Emergencies on the Road . 311
.............
Battery, Jump Starting . 320
...........
Brake System Indicator . 326
................
Changing a Flat Tire . 313
.....
Charging System Indicator . 324
Index
D
E
II
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CONT INUED
..................
Checking the Fuses . 327
.........
Hazard Warning Flashers . 90
......
If Your Vehicle Gets Stuck . 332
............................
Jump Starting .320
.....
Low Oil Pressure Indicator . 324
...
Malf unction Indicator Lamp . 325
..................
Overheated Engine . 322
.......................................
Towing .331
.........................
Emergency Brake .117
......................
Emergency Flashers .90
......................
Emergency Towing .331
............
Emergency Trunk Opener . 98
.......................
Emissions Controls .345
.............
Emissions Testing, State . 348
Engine ....
Coolant Temperature Gauge . 65
Malf unction Indicator ................................
Lamp . 59, 325
.........................................
Oil Lif e .72
........
Oil Pressure Indicator . 59, 324
..............
Oil, What Kind to Use . 283
...............................
Overheating .322
............................
Specif ications .338
....................
Speed Limiter . 251, 258
..............................
Starting . 247, 248
.................
Engine, if it won’t start . 318......................
Ethanol in Gasoline .235
.
Evaporative Emissions Controls . 345
...............................
Exhaust Fumes .52
Expectant Mothers, Use of Seat ........................................
Belts by .16
...................................
Fan, Interior .128
Features, Comfort and ..............................
Convenience .125
....................
Filling the Fuel Tank . 235
........................................
Filter, Oil .284
.............
Flashers, Hazard Warning . 90
...................
Flat Tire, Changing a . 313
.....................................
Floor Mats .300
Fluids ..........
Automatic Transmission . 288
..........................................
Brake . 291
.........................................
Clutch .291
..............
Manual Transmission . 290
..........................
Power Steering .292
................
Windshield Washers . 287
FM Stereo Radio ...................................
Reception . 178
........................................
Fog Lights . 89 ..........................
Four-way Flashers .90
..............................
Front Airbags . 9, 24
....................................
Front Seats .103
....................................
Adjusting .103
.......................................
Heaters .111
.....................................
Airbags . 9, 24
.................................................
Fuel .234
......................
Fill Door and Cap .235
...........................................
Gauge .65
................
Octane Requirement . 234
........................
Reserve Indicator .63
........................
Tank, Filling the .235
.....................
Fuses, Checking the .327
...............
Gas Mileage, Improving . 239
.........................................
Gasoline .234
...............
Fuel Reserve Indicator . 63
...........................................
Gauge .65
................
Octane Requirement . 234
........................
Tank, Filling the .235
................
Gas Station Procedures . 235
Index
F
G
INDEX
III
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