engine HONDA PILOT 2008 1.G Manual PDF

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.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.
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.
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.
2
2
Exhaust Emissions Controls Replacement Parts
PGM-FI Syst em T hree Way Cat alyt ic Convert er Ignit ion T iming Cont rol Syst em
Exhaust Gas Recirculat ion (EGR)Syst em
Emissions Cont rols
Technical Inf ormation
303
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The three way catalytic converter
contains precious metals that 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 Honda 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. 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.
Three Way Catalytic Converter
304
THREE WAY CATALYTIC CONVERTER
THREE WAY CATALYTIC
CONVERTERS
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If you take your vehicle f or an
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.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.
Keep the vehicle in Park. Increase
the engine speed to 2,000 rpm, and
hold it there until the temperature
gauge rises to at least 1/4 of the
scale (about 3 minutes).
Make sure the vehicle has been
parked with the engine of f f or 6
hours or more.
Make sure the ambient
temperature is between 40° and
95°F. Select a nearby lightly traveled
major highway where you can
maintain a speed of 50 to 60 mph
f or at least 20 minutes. Drive on
the highway in D. Do not use the
cruise control. When traf f ic 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 (f or a total of 90
seconds).
Without touching the accelerator
pedal, let the engine idle f or 20
seconds.
1.
2.
3.
4. 5.
6.
7.
CONT INUED
T esting of Readiness Codes
Emissions T esting
Technical Inf ormation
305
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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.
8.
9.
Emissions T esting
306
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T he publications shown below can be purchased f rom Helm
Incorporated. You can order by phone or online:Call Helm Inc. at 1-800-782-4356 (credit card orders only)
Go online at
If you are interested in other years or models, contact Helm Inc.
at 1-800-782-4356.
Covers maintenance and recommended procedures f or
repair to engine and chassis components. It is written
f or the journeyman mechanic, but it is simple enough
f or most mechanically inclined owners to understand.
Complements the Service Manual by providing in-depth
troubleshooting inf ormation f or each electrical circuit
in your vehicle.
Describes the procedures involved in the replacement
of damaged body parts.
Purchasing Factory Authorized Manuals
Electrical T roubleshooting Manual:
Service Manual:
Body Repair Manual:
(U.S.only)
Authorized Manuals
Authorized Manuals
311
Publication
Form Number 61S9V05
61S9V05EL
61S9V30
31S9V650
31S9V810
31S9VM30 31S9VQ50 HON-R Form Description
2006-2008 Honda Pilot Service Manual 2008 Honda Pilot
Electrical Troubleshooting Manual 2003 Model Series Honda Pilot Body Repair Manual
2008 Honda Pilot Owner’s Manual 2008 Honda Pilot
Navigation System Owner’s Manual
2008 Honda Pilot Honda Service History 2008 Honda Pilot Quick Start GuideOrder Form for Previous Years-
Indicate Year and Model Desired
www. helminc. com
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CONT INUED
...
Accessories and Modif ications .196
ACCESSORY (Ignition Key
.......................................
Position) .81
............
Accessory Power Sockets .101
...........................
AC Power Outlet .102
....................
Additives, Engine Oil .245
...............
AdvancedAirbagSystem .30
.............................
Airbag (SRS) .11,25
..........
Airbag System Components .25
..............
Air Conditioning System .106
.....................
Rear A/C Control .113
.......................
Air Pressure, Tires .264
......................................
Antif reeze .248
...............
Anti-lock Brakes (ABS) .216
...............................
Indicator .63,217
...................................
Operation .216
..............
Anti-thef t, Audio System .141
.
Anti-thef t Steering Column Lock .81
................................
Audio System .115
...
Automatic Seat Belt Tensioners .23
...
Automatic Lighting Off Feature .76
.............
Automatic Speed Control .177
..............
Automatic Transmission .206
..........................
Capacity, Fluid .294 ...............
Checking Fluid Level .250
.......................................
Shif ting .206
.
Shif t Lever Position Indicator .206
................
Shif t Lever Positions .207
....................
Shif t Lock Release .209
Battery Charging System ...........................
Indicator .62,282
............................
Jump Starting .278
..............................
Maintenance .269
............................
Specif ications .294
..............................
Bef ore Driving .187
..................................
Belts, Seat .10,21
...........................
Beverage Holders .99
..................................
Booster Seats .54
Brakes
...........
Anti-lock System (ABS) .216
.............
Break-in, New Linings .188
....................
Bulb Replacement .258
...........................................
Fluid .252
.........................................
Parking .97
.................
System Indicator .63,284
........................
Wear Indicators .215 .............................
Braking System .215
.................
Break-in, New Vehicle .188
..
Brightness Control, Instruments .76
........................
Brights, Headlights .75
Bulb Replacement
..........................
Back-up Lights .258
.....................
Brake Lights .258,259
................
Front Parking Lights .255
........
Front Side Marker Lights .255
.................................
Headlights .254
........
High-mount Brake Lights .259
.................................
Rear Bulbs .258
............................
Specif ications .295
.............
Turn Signal Light .255,258
..............................
Bulbs, Halogen .254
............................
Capacities Chart .294
.............
Carbon Monoxide Hazard .57
.............................
Carrying Cargo .198
.............
CAUTION, Explanation of .iii
..........................
CD Changer .131,134
.......................................
CD Player .130
Index
A
B
C
INDEX
I
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........................
Certif ication Label .292
............................................
Chains .268
....................
Changing a Flat Tire .273
Change Oil
........................................
How to .246
......................................
When to .237
...
Charging System Indicator .62,282
............
Checklist, Bef ore Driving .204
..................
Childproof Door Locks .83
Child Seats
.........................................
LATCH .47
..........
Tether Anchorage Points .51
...............
Climate Control System .112
.........................
Clock, Setting the .142
.....................
Code, Audio System .141
........................
CO in the Exhaust .302
............
Cold Weather, Starting in .205
......................
Compact Spare Tire .272
...................
Console Compartment .99
.................
Consumer Inf ormation .308
.............
Controls, Instruments and .59
Coolant
........................................
Adding .248
....................................
Checking .192
.........................
Proper Solution .248
...................
Temperature Gauge .71 ...................
Conversation Mirror .100
Crankcase Emissions Control
........................................
System .302
............
Cruise Control Operation .177
....
Customer Service Inf ormation .308
..............................
Economy, Fuel .193
............
Emergencies on the Road .271
.............
Battery, Jump Starting .278
...........
Brake System Indicator .284
................
Changing a Flat Tire .273
.....
Charging System Indicator .282
..................
Checking the Fuses .285
.....
Low Oil Pressure Indicator .282
...
Malf unction Indicator Lamp .283
..................
Overheated Engine .280
...........................
Emergency Brake .97
......................
Emergency Flashers .77
......................
Emergency Towing .285
.......................
Emissions Controls .302
........................
Emissions Testing .305
...............
DANGER, Explanation of .iii
...................................
Dashboard .4,60
................
Daytime Running Lights .76
Daytime Running Lights
.......................................
Indicator .67
.................................
Dead Battery .278
............
Def ects, Reporting Saf ety .310
................
Def ogger, Rear Window .77
......
Def rosting the Windows .108,110
....................................
Dimensions .294
...............
Dimming the Headlights .75
Dipstick
..........
Automatic Transmission .250
..................................
Engine Oil .191
....................
Directional Signals .66,75
........
Disc Brake Wear Indicators .215
.....................
Disposal of Used Oil .247 Doors
..............
Locking and Unlocking .82
..........
DOT Tire Quality Grading .296
...........
Driver and Passenger Safety .7
...........................................
Driving .203
....................................
Economy .193
...................................
DVD Player .144
........
DVD Player Error Message .173
Index
D
E
II
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CONT INUED
...................................
Fan, Interior .106
.........................................
Features .105
....................
Filling the Fuel Tank .189
Filters
...............................................
Oil .246
.............
Flashers, Hazard Warning .77
...................
Flat Tire, Changing a .273 Fluids
..........
Automatic Transmission .250
..........................................
Brake .252
..........................
Power Steering .253
................
Windshield Washers .249
...................
Folding the Third Seat .90
..........................
Four-way Flashers .77
.................................................
Fuel .188
...............................
Cap Message .72
......................
Fill Door and Cap .189
...........................................
Gauge .70
................
Octane Requirement .188
........................
Reserve Indicator .67
........................
Tank, Filling the .189
.....................
Fuses, Checking the .285
...............
Gas Mileage, Improving .194
.........................................
Gasoline .188
...............
Fuel Reserve Indicator .67
...........................................
Gauge .70
................
Octane Requirement .188
........................
Tank, Filling the .189
................
Gas Station Procedures .189 Gauges
...
Engine Coolant Temperature .71
...............................................
Fuel .70
GAWR (Gross Axle Weight .......................................
Rating) .221
GCWR (Gross Combined Weight .......................................
Rating) .221
............
Gearshif t Lever Positions .206
........................................
Glove Box .99
GVWR (Gross Vehicle Weight
.......................................
Rating) .221
.............
Halogen Headlight Bulbs .254
.................
Hazard Warning Button .77
Engine
....
Coolant Temperature Gauge .71
Malf unction Indicator
................................
Lamp .62,283
........
Oil Pressure Indicator .62,282
..............
Oil, What Kind to Use .245
...............................
Overheating .280
............................
Specif ications .295
............................
Speed Limiter .208
.......................................
Starting .205
.
Evaporative Emissions Controls .302
...............................
Exhaust Fumes .57
Exhaust Gas Recirculation
........................................
System .303
Expectant Mothers, Use of Seat ........................................
Belts by .19
Index
F GH
INDEX
III
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CONT INUED
.................................
Lower Anchor .47
...
Lubricant Specif ications Chart .294
.........................................
Luggage .198
..................................
Maintenance .235
Owner’s Maintenance ...................................
Checks .242
................................
Minder .237-243
.........................
Minder Indicator .69
..........................................
Saf ety .236
.
Malf unction Indicator Lamp .62,283
..............
Manual Seat Adjustments .88
...............................
Meters, Gauges .70
.................................
Modif ications .197
.........................................
Moonroof .96
...................
Neutral Gear Position .207
..................
New Vehicle Break-in .188
...................
NOTICE, Explanation of .i
...............
Numbers, Identif ication .292 ...
Octane Requirement, Gasoline .188
.........................................
Odometer .70
...............................
Odometer, Trip .70
....................
Of f -Highway Driving .230
...................
Of f -Road Precautions .230
Oil
........................
Change, How to .246
......................
Change, When to .237
......................
Checking Engine .191
..............
Pressure Indicator .62,282
Selecting Proper Viscosity
......................................
Chart .245
...........
ON (Ignition Key Position) .81
Onboard Ref ueling Vapor
....................................
Recovery .302
..............................
Outside Mirrors .93
....................
Overheating, Engine .280
....
Owner’s Maintenance Checks .242
..............
Panel Brightness Control .76
........................
Park Gear Position .207
...........................................
Parking .214 .................................
Parking Brake .97
Parking Brake and Brake System
...............................
Indicator .63,284
.................................
Parking Lights .75
..
Parking Over Things that Burn .304
..........................
Playing the Radio .117
................................
Playing a Disc .130
....
Playing the Disc Changer .131,134
.............................
PGM-FI System .303
................
Power Seat Adjustments .87
.................
Power Socket Locations .98
..............................
Power Windows .94
.........
Pregnancy, Using Seat Belts .19
.........
Protecting Adults and Teens .12
...
Additional Safety Precautions .20
.....
Advice f or Pregnant Women .19
........................
Protecting Children .38
...........................
Protecting Inf ants .43
...........
Protecting Larger Children .53
.............
Protecting Small Children .44
Index
INDEXP
M
N O
V
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Saf ety Belts .10
............
Safety Defects, Reporting .310
.................................
Saf ety Features .9
.........................................
Airbags .11
.....................................
Seat Belts .10
.............
Saf ety Labels, Location of .58
..............................
Saf ety Messages .iii
.........................................
Seat Belts .10
...............
Additional Information .21
Automatic Seat Belt
...............................
Tensioners .23
.....................................
Cleaning .260
......................
Lap/Shoulder Belt .22
................................
Maintenance .23
Reminder Light and
................................
Beeper .21,62 ...................
System Components .25
...............
Use During Pregnancy .19
...
Wearing a Lap/Shoulder Belt .15
....................................
Seat Heaters .86
.................................................
Seats .87
............
Folding the Second Seat .89
...............
Folding the Third Seat .90
..........................
Head Restraints .91
.........
Reclining the Second Seat .89
............
Reclining the Third Seat .90
.......................
Third Seat Access .90
...................
Seats, Adjusting the .87-91
............................
Security System .176
...............................
Serial Number .292
...........................
Service Intervals .237
.............................
Service Manual .311
.........
Service Station Procedures .189
..........................
Setting the Clock .142
Shif ting the Automatic
.............................
Transmission .206
.....
Shif t Lever Position Indicator .206
........................
Shif t Lock Release .209
Side Marker Lights, Bulb
.........................
Replacement in .255
..............................
Side Airbags .11,31
..........................
Of f Indicator .34,63
...................
Radiator Overheating .280
.............
Radio/CD Sound System .115
...........................
Readiness Codes .305
...............................
Rear A/C Unit .113
............
Rear Audio Control Panel .149
........
Rear Entertainment System .144
..
Rear Lights, Bulb Replacement .258
.
Rear View Camera and Monitor .182
............................
Rear View Mirror .92
.................
Rear Window Def ogger .77
.
Rear Window Wiper and Washer .74
..........
Reclining the Seat Backs .87-91
.............................
Reminder Lights .61
................
Remote Audio Controls .140
.................
Remote Control (RES) .171
.......................
Remote Transmitter .83
Replacement Inf ormation
................
Engine Oil and Filter .246
.................................
Floor Mats .260
..........................................
Fuses .285
................................
Light Bulbs .254
........................................
Minder .243
................................
Timing Belt .252
...........................................
Tires .265 .............................
Wiper Blades .261
Replacing Seat Belts Af ter a ............................................
Crash .23
...
Reserve Tank, Engine Coolant .192
...............................
Restraint, Child .38
..................
Reverse Gear Position .207
................................
Rotation, Tire .266
Index
R
S
VI
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