2012 ACURA RL catalytic converter

This shows the temperature of the
engine’s coolant. During normal
operation, the pointer should rise
from the bottom white mark to about
the middle of the gauge. In severe
driving conditions, such as very hot
weather or a long period of uphill
driving, the pointer may rise to theupper end of the white section of the
gauge. If it reaches the red (hot)
mark, pull saf ely to the side of the
road. For more inf ormation, see page
.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.
505
Gauges
Temperature GaugeFuel Gauge
70
U.S. model is shown.TACHOMETER TEMPERATURE GAUGESPEEDOMETER
FUEL GAUGE
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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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 on an
incline.
Set the parking brake bef ore you put
the transmission in Park. This keeps
the vehicle from 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.
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.
If the vehicle is f acing uphill, turn
the f ront wheels away f rom the
curb.
If the vehicle is f acing downhill,
turn the front wheels toward the
curb.Check the indicator on the
instrument panel to verif y that the
security system is set.
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. Parking T ips
Parking
414
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µ Thediagramsinthissectiongive
you the dimensions and capacities of
your vehicle, and the location of
identif ication numbers. It also
includes inf ormation you should
know about your vehicle’s tires and
emissions control systems................. Identif ication Numbers . 524
................................ Specif ications . 526
DOT Tire Quality Grading
...................... (U.S. Vehicles) . 528
................................. Treadwear . 528
...................................... Traction . 528
............................. Temperature . 529
................................. Tire Labeling . 530
Tire Pressure Monitoring System
(TPMS) Required Federal
............................ Explanation . 532....................... Emissions Controls . 534
..................... The Clean Air Act . 534
Crankcase Emissions Control
.................................... System . 534
Evaporative Emissions Control
.................................... System . 534
Onboard Ref ueling Vapor
................................ Recovery . 534
... Exhaust Emissions Controls . 535
.................... PGM-FI System . 535
Ignition Timing Control
................................ System . 535
Exhaust Gas Recirculation
................... (EGR) System . 535
Three Way Catalytic
........................... Converter . 535
.................... Replacement Parts . 535
Three Way Catalytic
................................. Converters . 536
........................ Emissions Testing . 537
T echnical Inf ormat ion
T echnical Inf ormation
523
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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 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 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.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for more inf orma-
tion. The three way catalytic converters
are in the exhaust system. Through
chemical reactions, they convert 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 Syst emIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)
Syst em
Three Way Catalytic Converter
Emissions Cont rols
T echnical Inf ormation
535
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The three way catalytic converters
contain precious metals that serve as
catalysts, promoting chemical
reactions to convert the exhaust
gasses without af f ecting the metals.
The catalytic converters are ref erred
to as three-way catalysts, since they
act on HC, CO, and NOx.
Replacement units must be original
Acura parts or their equivalent.
The three way catalytic converters
must operate at a high temperature
for the chemical reactions to take
place. They can set on f ire any
combustible materials that come
near them. Park your vehicle away
f rom 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 converters.
Always use unleaded gasoline.
Even a small amount of leaded
gasoline can contaminate the
catalyst metals, making the three
way catalytic converters
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 Converters
536
THREE WAY CATALYTIC CONVERTERS
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CONT INUED
.......... SRS, Additional Inf ormation . 26
... Additional Safety Precautions . 37
.. How the SRS Indicator Works . 34
How Your Airbags
............................ Work . 28, 32, 33
........................ SRS Components . 26
.................................. SRS Service . 36
............................. SRS Indicator . 34, 63
START (Ignition Switch
..................................... Position) . 152
....................... Starting the Engine . 401
................... Auto Control Mode . 401
In Cold Weather at High
.................................. Altitude . 401
................ With a Dead Battery . 502
........ Steam Coming f rom Engine . 505
Steering Wheel
.............................. Adjustments . 148
........... Anti-thef t Column Lock . 152
...................... Position Memory . 164
Steering Wheel Buttons/
..................................... Switches . 136
................... Stereo Sound System . 213
.................... Storing Your Vehicle . 493
...................................... Sun Visors . 196Supplemental Restraint
................................ System . 11, 26
...................................... Servicing . 36
......................... SRS Indicator . 34, 63
................... System Components . 26
.................................. Synthetic Oil . 459
. Taking Care of the Unexpected . 495
Technical Descriptions
...... DOT Tire Quality Grading . 528
..... Emissions Control Systems . 534
Three Way Catalytic
............................. Converters . 536
....................... Temperature Gauge . 70
........ Temperature, Inside Sensor . 212
.................... Temperature, Outside . 73
.............. Tether Anchorage Points . 51
Three Way Catalytic
................................. Converters . 536
Tilt/Telescopic Steering
......................................... Wheel . 148
.................................... Timing Belt . 467
.................................... Tire Chains . 488
......... Tire, How to Change a Flat . 497Tire Pressure Monitoring
............ System (TPMS) . 429, 532
Monitoring Tire Pressure
.................................. Reading . 431
........... TPMS System Warning . 433
............................................... Tires . 481
.............................. Air Pressure . 482
........................................ Chains . 488
......................... Checking Wear . 484
.......................... Compact Spare . 496
...... DOT Tire Quality Grading . 528
...................................... Inf lation . 481
.................................. Inspection . 484
..................................... Labeling . 530
Low Tire Pressure/TPMS
........................... Indicator . 67, 429
...................... Pressure Monitor . 432
........ Pressure Monitor System . 431
................................... Replacing . 486
...................................... Rotating . 486
........................................... Snow . 488
............................ Specif ications . 527
................... Tools, Tire Changing . 497
Index
INDEX
T
IX
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