light HONDA PRELUDE 1990 Workshop Manual
[x] Cancel search | Manufacturer: HONDA, Model Year: 1990, Model line: PRELUDE, Model: HONDA PRELUDE 1990Pages: 143, PDF Size: 2.07 MB
Page 124 of 143

Headlight Motors (cont'd)
3. If the fuse has blown, replacing it with a new fuse of the same
amperage should allow the
motor to work.
However, if the fuse hasn't
blown, or if a new fuse did not
solve the problem, remove the
fuse and operate the headlight motor manually.
CAUTION:
Always remove the fuse before manually operating a headlight
motor, otherwise the motor may suddenly activate.
4. Remove the cap from the top of the headlight motor, then turn the knob in the direction of the arrow (clockwise) until theheadlight is as far up or down as it will go.
NOTE:
If foreign matter is the cause of the motor malfunction, it can
usually be dislodged by turning the knob counterclockwise,
5. Replace the cap properly.
6. Reinstall the fuse and fuse box cover and have the headlight motor inspected at the earliest opportunity. BLOWN FUSE
CAP
Turn knob indirection of arroProCarManuals.comMain Menu s t
Page 130 of 143

Emission Controls
Sources of Emissions
The combustion process produces carbon monoxide, oxides of nitrogen and hydrocarbons. The evaporation of fuel in the fuel tank
also produces hydrocarbons. Control of oxides of nitrogen and
hydrocarbons is very important since, under certain conditions,
when subjected to sunlight, they react to form photochemical smog. Carbon monoxide does not react to form smog, but it is toxic.
Honda Motor Co., Ltd. has developed a number of systems which
are highly effective in reducing carbon monoxide, oxides of nitrogen
and hydrocarbons.
The Clean Air Act
The Clean Air Act requires all vehicle manufacturers to explain in writing, the operation and maintenance of their emission control
systems.
Maintenance instructions are included on pages 76—81 ; the
operation of each system is explained on the following.
Replacement Parts
The emission control systems on your new Honda were designed, built and certified to conform with the Federal regulations
implementing the Clean Air Act. Honda recommends only the use of
new, genuine Honda parts or their equivalent. The use of other
replacement parts which are not of equivalent quality may impair
the effectiveness of your car's emission control systems.
Crankcase Emission Control System
To prevent crankcase emissions, your car is equipped with a Positive Crankcase Ventilation (PCV) System which routes blowby
gases from the crankcase, through the PCV valve and intake manifold, into the combustion chamber.ProCarManuals.comMain Menu t s
Page 132 of 143

Emission Controls (cont'd)
Intake Air Temperature Control System (2.0 S)The air control valve mounted inside the air cleaner snorkel
automatically opens and closes according to the intake air
temperature. The carburetor then receives air of constant
temperature which results in lower exhaust emissions.
Carburetor Controls (2.0 S)—Throttle controller — This system controls the throttle during
gear shifting, reducing the amount of HC caused by unburned
fuel mixture.
— Choke opener — When starting a cold engine, this device
opens the choke slightly. This reduces the amount of HC and
CO.
— Altitude Compensation devices — The Air Jet Controller (AJC)
has an atmospheric pressure sensing bellows. The AJC is
designed to control the amount of additional air fed to the
carburetor jets to maintain good driveability at any altitude. Ignition Timing Control System
This system automatically controls the ignition timing to reduce
the amount of HC and NOx.
Exhaust Gas Recirculation (EGR) [Except California 2.0 S models]
The EGR system is designed to control the formation of oxides of nitrogen (NOx) caused when fuel mixture burns at high
temperature. It works by recirculating exhaust gas through the EGR valve and intake manifold into the combustion chambers
where it reduces peak temperature by diluting the air/fuel mixture.
Catalytic Converter
The catalyst is used to convert hydrocarbons (HC), carbon monoxide (CO) and oxides of nitrogen (NOx) in the exhaust gas,
to carbon dioxide (CO 2
), dinitrogen (N 2
) and water vapor.
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Page 134 of 143

Catalytic Converter
A catalytic converter is installed in the exhaust system to help
clean-up the exhaust gases that can cause air pollution.
To be effective, the converter must work at high temperature, so don't park your car over dry grass, leaves or anything else that
could burn easily.
To stay effective, the converter must not be contaminated by
leaded gasoline; use only unleaded gas as explained on page 55.
CAUTION:
The converter can be overheated and damaged if it's fed too much unburned fuel mixture from the engine, so:
— Don't push or tow the car to start it; if the battery is dead. jump start the car as shown on page 119.
— Don't turn the key off while the engine is running above idle
speed.
— Don't change the ignition timing, or remove any emission control parts.
— Use only the spark plugs specified in this manual.
— Don't keep driving your car if it isn't running properly, or if its Check Engine warning light comes on; have It checked byyour Honda dealer. CATALYTIC CONVERTERProCarManuals.comMain Menu t s
Page 137 of 143

Index
(cont'd)
Air Conditioner
Operation.....................................
43
Service.......................................108
Air Filte
r ...........................................95
Air Pressure, Tires........................105
Aluminum Alloy Wheels...............111
Antifreeze ..................See
"Radiator coolant"
Anti Lock Brakes(ALB) ..................18 ALB Warning Light .....................
24
ALB Fluid
.....................................
99
Anti-theft Steering
Column Lock
System.........................................58
Appearance Care .........................
110
Ashtrays..........................................38
Audio System
.................................
47
Automatic Transmission
Driving Technique ......................68
Fluid.............................................87
Operation....................................67
Shift Lever
Position
Indicator .................................
21 Battery
Charging System Warning
Light.......................................23
Jump Starting ...........................119 Maintenance .............................100
Specification ........................... 126
Beeper System Fasten Seat Belt Beeper ............13
Key Reminder .............................58
Light Reminder Chime ................30
Belts,Seat...............See "Seat Belts"
Brake Lamp Warning Light.............25
Brakes Brake Failure Warning Light .......................................23
Brake Fluid...................................99
Brake System Design .................98
Brake Wear .................................98
Brake Wear Indicators................98
Parking Brake ..............................39
Parking Brake Warning Light .......................................23
Break-in Period ..................................2
Bulb
Replacement.............................103
Specification .............................126
Buzzer ............See "Beeper System"
Capacities......................................125
Care and Cleaning.........................110
Catalytic Converter .....................134
Certification Label ........................127
Chains,Tires ................................. 106
Child Restraint System ..................14
Cigarette Lighter .............................38
Clock................................................37
COMPACT Spare Tire .................114Coolant Temperature Gauge .........20
Cooling(with A/C) ...........................44 Cooling System ...............................88
Crankcase Emission ControlSystem ..........................................
130
Cruise Control
Opeartion...................................
35Indicator .....................................22
Defogger.........................................28
Defroster .........................................45
Dimmer Switch, Headlights...........31
Doors
Locks............................................3
Warning Light ............................25
Emergency
Changing Flat Tire ...................116
Hazard Warning System ..........33If the Retractable Headlights do not operate ...................123
If the Sunroof Won't
Close .....................................54
If Your Car Gets Stuck ...........122
Jump Starting .........................119Towing.....................................121Warning and
Indicator
Lights....................................21
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Index (cont'd)
Emission Controls.........................130
Engine
Coolant.......................................88
Coolant Temperature
Gauge....................................20
Identification Number .............127
Oil and Filter...............................83
Oil Pressure
Warning
Light .......................................22
Specification ...........................125
Exhaust Controls....................131
Engine Exhaust Ga
s Warning
....................................................64
Evaporative Emission Control
System ....................................131
Exhaust Gas Recirculation...........132
Exterior Care.................................110
Filters
Air...........................................94
Engine Oil ...................................84
Fuel.............................................96
Fluid .....................................See "Oil"
Foreign Countries, Operation in ...............................56
Four Wheel Steering.......................59 Front Seat
Adjustment..................................5
Fuel
Filter Door and Cap...................56
Fuel Reserve
Warning
Light .......................................22
Gauge.........................................20
Gasohol......................................55
Gasoline ......................................55
Requirement..............................55
Filter...........................................96
Fuse
Checking and Replacing .........101
Specification...........................126 Gasoline............................See"Fuel"
Gas Station Information
...........................................back cover
Gauges............................................20
Glove Box ........................................39
Hazard Warning
Indicator Light ...........................21
Hazard Warning System................33
Headlights
Flasher.......................................31
Headlight Motor
Switch ...........32
High Beam Indicator..................21
High Beam/Low
Beam
Switch...................................31
If the
Retractable Headlights
do not operate ...................123
Reminder Chime
.......................30
Retractable Headlight Motor Warning Light .......................25
Switch.......................................30
Headlight High
Beam Indicator
Light ...........................................21
Head Restraints.................................8
Heating.............................................45
High Bea
m
Switch .......................................31
Indicator Light ...........................21
Hood Latch.....................................39
Identification Numbers.................127
Ignition
Keys.............................................3
Switch........................................58
Indicator Lights ...............................20
Inflation Pressures, Tire..............105
Instrument Panel....................19
Instrument Panel
Brightness
Control.......................................33
Interior light .....................................33
Interior Trim Care .........................110 Jack .............................................116
Jump Starting ...............................119ProCarManuals.comMain Menu t s
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Keys
Door Locks ..................................3
Glove box ..................................39
Trunk Lid Lock ............................4
Ignition ........................................58
Key Reminder Beeper...............58Keys.............................................3
Lap/Shoulder Belts
................................Se
e "Seat Belts"
Light
Bulb Replacement...................103
Fuse Replacement ..................101
Light Reminder
Chime ..............30
Operation.................................30
Warning and Indicator Light
......................................................21
Locks
Fuel Filler Door ..........................56
Doors..........................................3
Glove Bo
x ..................................39
Trunk Lid......................................4
Anti-theft Steering
Column
Lock.......................................58
Lumbar Support,Driver's .................7
Maintenace Schedule
and
Records......................................76
Manual Transmission Maximum Allowable Speeds
....................................................66
Oil........................................86
Recommended Shift
Speeds
....................................................66
Shifting.....................................65
Meters Gauges.......See
"Gauges"
Mirrors Power Mirrors ...........................29
Rear View Mirrors ....................29 Numbers, Identification................ 127
Octane Rating,
Gasoline
.......................................... See "Fuel"
Odometer ........................................20Oil
Engine Oil ...................................83
Fluid Locations ..........................82Transmission Oil/Fluid ..............86Oil Pressure Warning Light.......22
Power Steering Fluid ................97
Operation In
Foreign Countries
..........................................................56
Panel Brightness Control ...............33
Parking Brake.................................
39
Power
Mirrors .......................................29
Steering .....................................
97
Windows................................40
PGM-FI System............................131
Pressures, Tire Inflation...............105
Preventive Service.......................
112
(cont'd)
Radiator Coolant .............................88
Radio ................................................47
Rear View Mirrors ..........................29
Rear Window Defogger ..................28
Reminder Lights
..........................See "Warning lights"ProCarManuals.comMain Menu t s
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Index (cont'd)
Replacement
Air Filter .....................................94
Bulbs........................................ 103
Engine Oil ...................................84
Fuel Filter ...................................96
Fuses .......................................101Oil Filter
......................................84
Radiator Coolant .......................90
Spark Plugs...............................92
Tires.........................................107
Wiper Blades .............................93Retractable Headlights I
f the Retractable Headlights
do not operate ...................123
Rust Prevention.........................111
Safety Items ...................................63
Seat Belt Reminder Light and
Beeper ..................................... .21
Seat Belts
Anchor Points ...........................16
Buckling the FrontSeat Belts .............................10
Buckling the Rear Seat Belts............................12
Child Restraint......................14
Cleaning .....................................17
Warning Light and Warning Beeper ...................13
Inspection ..................................17
Lap/Shoulder Belts ...................10
Pregnant Women ......................16
Reminder Light ..........................20
Replacement .............................17
Seats
Driver's Lumbar Support ...........7
Driver's Side Support..............7
Front Seat ....................................5
Head Restraints ...........................8
Shift Lever Position Indicator........20
Shifting
Automatic..................................67
5-Speed......................................65
Spare Tire
Changing a Flat Tire................116
COMPACT Spare Tire ...........114
Specifications .........................125
Spark Plugs...................................92
Specifications...............................125Speedometer ..................................
20
Starting the Engine .........................61
Steering Anti-theft Column Lock ...........
58Four Wheel Steering............59
Power Steerin g
.........................97
Tilt Steering ........................26
Stereo Sound System
Operation...................................47
Stuck Car ..............................122
Sunroof
If the Sunroof Won't
Close .....................................54
Maintenance...........................54
Operation ........................ 53
Sunshade.......................................
53
Tachometer.............................20
Temperature Gauge
,
Coolant
....................................................20
Thermostat...................................90
Tilt Steering.....................................26
Tire
Air Pressure ............................105
Balancing ................................106
Chains...................................106
Changing a Fla
t Tire................118
COMPACT Spare .................114
DOT Tir
e
Quality Grades........128
Inflation Pressures ..................105
Requirement ..................................128
Rotation ...................................
106
Snow Tires ........................ 105
Spare Tire................................114
Specification ....................... .
126
To Get In/Out of Rear Seat..............6
Tools ..............................................
116
Towing...........................................121
Towing a Traile
r ..............................
71
Transmission
Identification
Number............127
Oil/Fluid......................................86
Shifting the Automatic.............67
Shifting the Manual...................65
Capacity ...................................125ProCarManuals.comMain Menu t s
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Tread Wear................................... 128
Trip Meter........................................20
Trunk.................................................4
Trunk Access From
Rear Seat ................................9
Trunk Lid......................................4
Trunk Light ................................34
Trunk-Open
Indicator Light .......................25
Turn Signals.....................................30
Vehicle Identification Number
....................................................127
Ventilation .......................................41
Warning Lights ................................21
Warranty Service .........................135
Washer
Reservoir Capacity ...................
27
Windshield Washer ...................27
Washing.........................................110
Waxing ..........................................111
Wheels...........................................111
Windows
Appearance Care....................
110
Power Windows .......................40
Windshield Defogger .......................28
Windshield Washer.........................27
Windshield Wipers ..........................27
Wiper Blades
...................................94
Wipers
Windshield Wipers ....................27
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