2010 Acura TSX Crankcase

Î
ÎThe burning of gasoline in your
vehicle’s engine produces several by-
products. Some of these are carbon
monoxide (CO), oxides of nitrogen
(NOx), and hydrocarbons (HC).
Gasoline evaporating f rom the tank
also produces hydrocarbons. Con-
trolling the production of NOx, CO,
and HC is important to the environ-
ment. Under certain conditions of
sunlight and climate, NOx and HC
react to f orm photochemical ‘‘smog.’’
Carbon monoxide does not contri-
bute to smog creation, but it is a
poisonous gas. The United States Clean Air Act
sets standards f or automobile
emissions. It also requires that
automobile manufacturers explain to
owners how their emissions controls
workandwhattodotomaintain
them. This section summarizes how
the emissions controls work.
Your vehicle has a positive
crankcase ventilation system. This
keeps gasses that build up in the
engine’s crankcase f rom going into
the atmosphere. The positive
crankcase ventilation valve routes
them from the crankcase back to theintake manif old. They are then
drawn into the engine and burned.
As gasoline evaporates in the f uel
tank, an evaporative emissions
control canister f illed with charcoal
adsorbs the vapor. It is stored in this
canister while the engine is of f . Af ter
the engine is started and warmed up,
the vapor is drawn into the engine
and burned during driving.
The onboard ref ueling vapor
recovery (ORVR) system captures
the f uel vapors during ref ueling. The
vapors are adsorbed in a canister
f illed with activated carbon. While
driving, the f uel vapors are drawn
into the engine and burned of f .
In Canada, Acura vehicles comply
with the Canadian emission
requirements, as specif ied in an
agreement with Environment
Canada, at the time they are
manuf actured. The Clean Air Act
Crankcase Emissions Control
System Evaporative Emissions Control
System
Onboard Ref ueling Vapor
Recovery
Emissions Cont rols
500
2010 TSX

The exhaust emissions controls
includethreeorfoursystems:
PGM-FI, ignition timing control,
exhaust gas recirculation (6-cylinder
models), and three way catalytic
converter. These 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 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 howmuch 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 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 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
quality parts may increase the
emissions f rom your vehicle.
6-cylinder models
2
2
Exhaust Emissions Controls
Replacement Parts
Emissions Cont rols
PGM-FI SystemIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em Three Way Catalytic ConverterTechnical Inf ormation
501
2010 TSX

...............
DANGER, Explanation of . iii
...................................
Dashboard .3, 58
..............
Daytime Running Lights . 114
.................................
Dead Battery .466
............
Def ects, Reporting Saf ety . 508
..............
Def ogger, Rear Window . 117
..............
Def rosting the Windows . 170
............................
Dimensions .488, 491
.............
Dimming the Headlights . 111
Dipstick ..........
Automatic Transmission . 423
..................................
Engine Oil .352
........................
Directional Signals .111
........
Disc Brake Wear Indicators . 383
.....................
Disposal of Used Oil .419
...................
Capacities Chart . 488,491
.............
Carbon Monoxide Hazard . 55
.............................
Carrying Cargo .359
.............
CAUTION, Explanation of . iii
.........................................
CD Care .256
...................................
CD Changer .244
.......................................
CD Player .189
........................
Certif ication Label .486
..................................
Ceiling Light .161
............................................
Chains .452
....................
Changing a Flat Tire .459
Changing Oil ........................................
How to .417
......................................
When to .403
...
Charging System Indicator . 61,471
............
Checklist, Bef ore Driving . 366
.....................................
Child Saf ety .36
..............................
Booster Seats .52
.............................
Child Seats .43, 44
Important Saf ety ..........................
Reminders .36-54
..........................................
Inf ants .41
..........................
Larger Children .51
.........................................
LATCH .46 ......................
Risks with Airbags .37
.............................
Small Children .42
..........................................
Tether .50
...........................
Warning Labels .56
..........
Where Should a Child Sit . 37
.......................................
Child Seats .36
.........................................
LATCH .46
..........
Tether Anchorage Points . 50
................
Childproof Door Locks . 125
................
Cleaning the Seat Belts . 441
..........
Client Service Inf ormation . 506
...............
Climate Control System . 166
..............................................
Clock .289
...................................
Clutch Fluid .428
..................
CO in the Exhaust . 55,500
....
Cold Weather, Starting in . 367,368
..............................
Compact Spare .458
.........................................
Compass .294
.................
Console Compartment . 156
.................
Consumer Inf ormation . 506
.............
Controls, Instruments and . 57
Coolant ........................................
Adding .420
....................................
Checking .353
.........................
Proper Solution .420
...................
Temperature Gauge . 69............................
Courtesy Lights .162
Crankcase Emissions Control ........................................
System .500
................
Cruise Control Indicator . 66
............
Cruise Control Operation . 298
.........................
Customer Service .506
.......................
Customized Settings .81
Index
D
C
II
2010 TSX