2011 HONDA ODYSSEY catalytic converter

This shows the temperature of the
engine’s coolant. During normal
operation, the pointer should rise
from the bottom 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 the
upper zone. If it reaches the red
(hot) mark, pull saf ely to the side of
the road. Turn to page for
instructions and precautions on
checking the engine cooling system.
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
of f the ignition.667
Temperature Gauge
Fuel Gauge
Gauges
Instruments and Controls
77
INFORMATION DISPLAY/
MULTI-INFORMATION DISPLAY
TACHOMETER SPEEDOMETER
FUEL GAUGE
TEMPERATURE
GAUGE
SELECT/RESET KNOB
U.S. Touring model is shown.
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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2011 Odyssey

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.
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 (if
equipped) and the windows are
closed.
Lock the doors and the tailgate. Place any packages, valuables, etc.
in the cargo area or take them
with you. Turn of f the lights.
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 the vehicle is f acing downhill,
turn the front wheels toward the
curb. 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.
On all models except LXParking T ips
Parking566
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2011 Odyssey

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 . 686
................................
Specif ications .688
DOT Tire Quality Grading ......................
(U.S. Vehicles) .690
Unif orm Tire Quality ..................................
Grading .690
.................................
Treadwear .690
......................................
Traction .690
.............................
Temperature .691
.................................
Tire Labeling .692
Tire Pressure Monitoring System (TPMS) Required Federal ............................
Explanation .694
.......................
Emissions Controls .697
.....................
The Clean Air Act .697
Crankcase Emissions Control ....................................
System .697
Evaporative Emissions Control ....................................
System .697
Onboard Ref ueling Vapor ................................
Recovery .697
...
Exhaust Emissions Controls . 698
....................
PGM-FI System .698
Ignition Timing Control ................................
System .698 Exhaust Gas Recirculation
...................
(EGR) System . 698
Three Way Catalytic ...........................
Converter .698
....................
Replacement Parts . 698
..
Three Way Catalytic Converter . 699
........................
Emissions Testing .700
....
Testing of Readiness Codes . 700
T echnical Inf ormation
T echnical Inf ormation
685
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2011 Odyssey

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 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 to-
gether in reducing emissions to
levels that comply with the Clean Air
Act. To make sure the emissions
remain low, you should use only new
Honda 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.
2
2
Exhaust Emissions Controls Replacement PartsPGM-FI SystemIgnit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Three Way Catalytic ConverterEmissions Controls698
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2011 Odyssey

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.Keep the engine well maintained.
Have your vehicle diagnosed and
repaired if it is misf iring, back-
f iring, stalling, or otherwise not
running properly.
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
Honda parts or their equivalent.
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.
Three Way Catalytic Converter
T echnical Inf ormation
699
THREE WAY CATALYTIC CONVERTER
WARM UP THREE WAY CATALYTIC
CONVERTERS
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2011 Odyssey

CONT INUED
........................
Sunglasses Holder .206
........................................
Sun Visor .207
Supplemental Restraint System ......................................
Servicing .34
.........................
SRS Indicator .32 ,67
...................
System Components . 24
..................................
Synthetic Oil .615
Unexpected, Taking Care..........................................
of the .653
....
Unif orm Tire Quality Grading . 690
........................
Unleaded Gasoline .540
.......
Used Oil, How to Dispose of . 617
.....................................
Tachometer .77
..........................................
Tailgate .162
.......................
Opening the .162, 163
.......
Open Monitor Indicator . 75,90
..
Taillights, Changing Bulbs . 631,632
.
Taking Care of the Unexpected . 653
Technical Descriptions .....
Emissions Control Systems . 697
Three Way Catalytic ...............................
Converter .699
.......................
Temperature Gauge .77
........
Temperature, Inside Sensor . 233
...................
Tensioners, Seat Belts . 22
..............
Tether Anchorage Points . 52
................
Thef t Protection, Radio . 413
..
Three Way Catalytic Converter . 699Tilt and Telescoping the
.........................
Steering Wheel .143
..........................
Time, Setting the .315
....................................
Timing Belt .624
....................................
Tire Chains .648
.........
Tire, How to Change a Flat . 655
...............................................
Tires .642
..............................
Air Pressure .643
...................................
Balancing .645
.........................
Checking Wear .644
..........................
Compact Spare .654
......
DOT Tire Quality Grading . 690
......................................
Inf lation .642
..................................
Inspection .644
.....................................
Labeling .692
...................................
Replacing .646
......................................
Rotating .645
................................
Service Lif e .645
...........................................
Snow .647
............................
Specif ications .689
................................
Tire Chains .648
Tire Pressure Monitoring ............
System (TPMS) . 572,574
...................
Tools, Tire Changing . 656
Towing .....................................
A Trailer .588 ................
Em ergency Wrecker .
683
....
Equipment and Accessories . 590
.............................
Weight Limit .588
.............................
Trailer Loading .588
......................
Trailer Towing Tips .594
Transmission ...............
Checking Fluid Level . 621
...........................
Fluid Selection .622
..............
Identif ication Number . 686
.............
Shif ting the Automatic . 562
.....................................
Treadwear .644
...............................
Trip Meter .85, 313
..................................
Turn Signals .136
Index
U
T
INDEX
IX
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2011 Odyssey