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Climate Control System
Sunlight Sensor/Temperature
Sensor
SUNLIGHT SENSOR
The climate control system has two sensors. A sunlight sensor is located
in the top of the dashboard and a
temperature sensor is next to the steering column. Do not cover the
sensors or spill any liquid on them. TEMPERATURE SENSOR
Comfort and Convenience Features
Page 272 of 333
Corrosion Protection
Two factors normally contribute to causing corrosion in your car:
1. Moisture trapped in body cavities. Dirt and road salt that collects in
hollows on the underside of the vehicle stays damp, promoting
corrosion in that area.
2. Removal of paint and protective coatings from the exterior andunderside of the car. Many corrosion-preventive measures
are built into your Acura. You can
help keep your car from corroding
by performing some simple periodic
maintenance:
Repair chips and scratches in thepaint as soon as you discover them.
Inspect and clean out the drain
holes in the bottom of the doors
and body. Check the floor coverings for
dampness. Carpeting and floor
mats may remain damp for a long
time, especially in winter. This dampness can eventually cause
the floor panels to corrode. Use a high-pressure spray to clean
the underside of your car. This is
especially important in areas that
use road salt in winter. It is also a
good idea in humid climates and
areas subject to salt air. Be careful
of the ABS wheel sensors and
wiring at each wheel. Have the corrosion-preventive
coatings on the underside of your
car inspected and repaired
periodically.
Appearance Care
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Driving in Foreign Countries
Technical Information
If you are planning to take your
Acura outside the U.S. or Canada, contact the tourist bureaus in the
areas you will be traveling in to find
out about the availability of unleaded
gasoline with the proper octane
rating.
If unleaded gasoline is not available,
be aware that using leaded gasoline
in your Acura will affect perfor-
mance and fuel mileage, and damage
its emissions controls. It will no
longer comply with U.S. and Canadian emissions regulations, and
will be illegal to operate in North
America. To bring your car back into compliance will require the replace-
ment of several components, such as
the oxygen sensors and the three
way catalytic converter. These re- placements are not covered under
warranty.
Page 312 of 333
Emissions Controls
Exhaust Emissions Controls
The exhaust emissions controls include four systems: PGM-FI,
Ignition Timing Control, Exhaust
Gas Recirculation and Three Way
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
emissions control systems are
separate from the crankcase and
evaporative emissions control
systems.
PGM-FI System
The PGM-FI System uses sequential multiport fuel injection.
It has three subsystems: Air Intake,
Engine Control, and Fuel Control.
The Powertrain Control Module (PCM) uses various sensors to
determine how much air is going
into the engine. It then controls how
much fuel to inject under all operat-
ing 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)
System
The Exhaust Gas Recirculation (EGR) system takes some of the
exhaust gas and routes it back into
the intake manifold. Adding exhaust
gas to the air/fuel mixture reduces
the amount of NOx produced when
the fuel is burned.
Three Way Catalytic Converter
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 (CO2), dinitrogen (N2), and water vapor. Replacement Parts
The emissions 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 emissions remain low, you should use only newGenuine Acura replacement parts or
their equivalent for repairs. Using
lower quality parts may increase the emissions from your car.
Technical Information
