timing HONDA PRELUDE 1992 Owners Manual

Technical Information
The diagrams in this section give
you the dimensions and capacities
of your Honda, and the locations of
the identification numbers. The explanations of several electronic
and mechanical systems on your Honda are for the more technically-
oriented owner. Identification Numbers............... 204
Specifications................................ 206
Anti-lock Brake System ............. 208
Supplemental Restraint
System........................................ 209

Four Wheel Steering ................... 210
Emission Controls......................... 211 The Clean Air Act.................... 211
Crankcase Emission Control
System.................................... 211

Evaporative Emission Control
System.................................... 211

Exhaust Emission Controls.... 212 PGM-FI System.................... 212

Ignition Timing Control
System................................ 212

Exhaust Gas
Recirculation..................... 212

Catalytic Converter............. 212

Replacement Parts................... 212

Catalytic Converter..................... 213

Technical InformationProCarManuals.comMain Menu s t

Emission Controls

Exhaust Emission Controls

The exhaust emission controls
include four systems: PGM-FI,
Ignition Timing Control, Exhaust
Gas Recirculation and Catalytic
Converter. These four systems
work together to control the engine's combustion and minimize
the amount of HC, CO, and NOx
that comes out the tailpipe. The
exhaust emission control systems
are separate from the crankcase
and evaporative emission control

systems.

PGM-FI System
The PGM-FI System on your car
has three sub systems: Air Intake,
Electronic Control, and Fuel
Control. The Electronic Control
Unit (ECU) uses various sensors to
determine how much air is going
into the engine. It then controls
how much fuel to inject under all
operating conditions. Ignition Timing Control System
This system constantly adjusts the
ignition timing, reducing the
amount of HC, CO and NOx

produced.

Exhaust Gas Recirculation (EGR)
The EGR system takes some of the
exhaust gas and routes it back into
the intake manifold. Adding ex-
haust gas to the air/fuel mixture re-
duces the amount of NOx produced
when the fuel is burned.
Catalytic Converter
The 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 2), dinitrogen
(N 2), and water vapor.
Replacement Parts

The emission control systems are

designed and certified to work to-

gether in reducing emissions to
levels that comply with the Clean

Air Act. To make sure the emis-
sions remain low, you should use

only new genuine Honda replace-

ment parts or their equivalent for

repairs. Using lower quality parts
may increase the emissions from

your car .

The emissions control systems are

covered b y
warranties separate

from the rest of your car. Read

your warranty manual for more
information.
Technical InformationProCarManuals.comMain Menu Table of Contents s t

Index

Ignition
Keys.............................................. 47

Switch.......................................... 47

Timing Control System........... 212
Indicator Lights,
Instrument

Panel............................................. 31

Infant Restraint.............................. 19
Inflation, Proper Tire..................
158
Inside Mirror...................................
59
Inspection, Tire.............................
159
Instrument Panel............................
30
Instrument Panel Brightness....... 41
Interior Cleaning..........................
179
Interior Lights................................
66
Introduction........................................ i
Jacking up the Car.......................
185

Jack, Tire...................................... .

185

Jump Starting...............................
.

191

Keys.................................................. 4
7

Label, Certification...................... 204
Lane Change, Signaling................ 41
Lap/Shoulder Belts......................... .
6
Leaking of Exhaust into Car........ 25

Lighter, Cigarette.......................... 65

Lights
Bulb Replacement.................... 164

Indicator....................................... 3 1

Parking........................................
. 40

Turn Signal.................................. 41

Loading Cargo..............................
106

LOCK (Ignitio n
Key Position).....

47

Locks
Anti-theft Steerin
g Column..... 47
Fuel Filler Door........................
100
Glove Box................................... .
62
Power Door.................................. 48

Trunk...........................................

50

Low Coolan t
Level.......................
139

Lower Gear
,
Downshifting to a . 112

Low Oil Pressure Light........ 33, 195

Lubricant Specifications Chart.
206

Luggage.........................................
106

Maintenance.................................. 127

Periodi
c Items........................... 133

Record................................. 131-

132

Schedule ............................ .
128-129

Manual Transmission..................
111

Manual Transmissio n
Fluid.......
145
Maximum Shif
t
Speeds....... 112, 115
Meters, Gauges............................... 37
Methanol in Gasoline..................... 98
Mirrors, Adjusting......................... 59
Neutral Gear Position..................
114
New Vehicl e
Break-in................... 98
Normal Shift Speeds....................
111
NOTICE, Explanatio n
of................ ii

Numbers, Identification..............
204

Occupant Protectio n
System ......... 4

CONTINUEDProCarManuals.comMain Menu s t