2010 HONDA FIT catalytic converter

Technical DescriptionsDOT Tire Quality Grading (U.S.
Vehicles) ............................. 321
Emissions Control Systems .....326
Three Way Catalytic Converter ............................ 328
Tire Labeling ........................... 323
Tire Pressure Monitoring System (TPMS) －Required Federal
Explanation ...................... 324
Temperature Indicator .................63
Temporarily Repairing a Flat
Tire ........................................ 291
Tensioners, Seat Belts ..................20
Tether Anchorage Points .............47
Theft Protection, Radio ..............191
Three Way Catalytic Converter ............................... 328
Tilt/Telescopic Steering Wheel ...77
Time, Setting the ........................192
Tire Chains ................................ 278
Tire, How to Change a Flat ........285
Tire Information .........................323
Tire Labeling .............................. 323
Tire Pressure Monitoring System (TPMS) ........................... 235, 324Tires
.......................................... 273
Air Pressure ............................ 274
Chains ..................................... 278
Checking Wear .......................275
Compact Spare ........................284
DOT Tire Quality Grading (U.S. Vehicles) ............................. 321
Inflation ................................... 273
Inspection ............................... 275
Labeling .................................. 323
Low Tire Pressure
Indicator ........................ 64, 235
Maintenance ........................... 276
Pressure Monitoring System ...235
Replacing ................................ 276
Rotating .................................. 276
Snow ....................................... 278
Specifications .......................... 320
Tools, Tire Changing .................285
Towing
A Trailer .................................. 238
Emergency Wrecker ...............311
TPMS (Tire Pressure Monitoring
System) .............................. 235
Indicator ............................ 64, 236Required Federal
Explanation ......................... 324
Transmission Checking Fluid Level, Automatic ............................ 259
Checking Fluid Level, Manual ................................ 260
Fluid Selection ................259, 260
Identification Number .............316
Shifting the Automatic .............219
Shifting the Manual .................217
Treadwear .................................. 321
Trip Meter ................................... 69
Turn Signals ................................. 63
U
Unexpected, Taking Care of the .......................................... 283
Uniform Tire Quality Grading
(U.S. only) .............................. 321
Unleaded Gasoline .....................198
Upper Glove Box ........................105
USB Flash Memory Device Error Messages ........................ 142, 183
Index
X

Instant Fuel Economy
This shows your instant fuel
economy in mpg (U.S.) or l/100 km(Canada).
Average Fuel Economy
This shows your vehicle's average
fuel economy in mpg (U.S.) or 1/100
km (Canada) since you last reset the
trip meter.
When you reset a trip meter, the
average fuel economiy for that trip
meter also resets.Odometer
The odometer shows the total
distance your vehicle has been
driven. It measures miles in U.S.
models and kilometers in Canadian
models. It is illegal under U.S.
federal law and Canadian provincial/
territorial regulations to disconnect,
reset, or alter the odometer with the
intent to change the number of miles
or kilometers indicated.
Fuel Gauge
This shows how much fuel you have.
It may show slightly more or less
than the actual amount. The needle
returns to the bottom after you turn
off the ignition.
Avoid driving with an extremely low
fuel level. Running out of fuel could
cause the engine to misfire, damaging
the catalytic converter.Check Fuel Cap Indicator
If the fuel fill cap is loose or missing,a
‘‘CHECK FUEL CAP ’’message
appears on the information display
after you start the engine. The
message changes from CHECK, to
FUEL, to CAP repeatedly.
Turn the engine off and confirm the
fuel fill cap is installed. If it is, loosen
the cap, then retighten it until it
clicks at least once. You can cycle the
message off of the display by
pressing the select/reset knob
repeatedly, but this message will be
displayed each time the engine is
started. It will take several days of
normal driving for the vehicle to turn
the warning off.
Gauges
70
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Always use the parking brake when
you park your vehicle. Make sure the
parking brake is set firmly, or your
vehicle may roll if it is parked on anincline.
If your vehicle has an automatic
transmission, set the parking brake
before you put the transmission in
Park. This keeps the vehicle from
moving and putting pressure on the
parking mechanism in thetransmission.Parking Tips
● Make sure the windows areclosed.
● Turn off the lights.
● Place any packages, valuables, etc.
in the cargo area or take them withyou.
● Lock the doors and the tailgate.
On Sport model
Check the indicator on the
instrument panel to verify that the
security system is set.
● Never park over dry leaves, tall
grass, or other flammable
materials. The hot three way
catalytic converter could cause
these materials to catch on fire. ●
If the vehicle is facing uphill, turn
the front wheels away from the
curb. If your vehicle has a manual
transmission, put it in first gear
and set the parking brake.
● If the vehicle is facing downhill,
turn the front wheels toward the
curb. If your vehicle has a manual
transmission, put it in reverse gear
and set the parking brake.
● Make sure the parking brake is
fully released before driving away.
Driving with the parking brake
partially set can overheat or
damage the rear brakes.
Parking
229
Driving
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The diagrams in this section give you
the dimensions and capacities of
your vehicle and the locations of the
identification numbers. It also
includes information you should
know about your vehicle's tires and
emissions control systems.Identification Numbers...............
316
Specifications ..............................
318
DOT Tire Quality Grading (U.S. Vehicles) .............................
321
Uniform Tire Quality Grading ...............................
321
Treadwear ...............................
321
Traction ..................................
321
Temperature ...........................
322
Tire Labeling ..............................
323
Tire Pressure Monitoring System (TPMS) －Required Federal
Explanation .........................
324
Emissions Controls .....................
326
The Clean Air Act ....................
326
Crankcase Emissions Control System ................................
326
Evaporative Emissions Control System ................................
326
Onboard Refueling Vapor
Recovery .............................
326
Exhaust Emissions Controls ..............................
327
Replacement Parts ..................
327Three Way Catalytic
Converter ................................
328
Emissions Testing .......................
329
Technical Information
315
Technical Information

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
come out the tailpipe. The exhaust
emissions control systems are
separate from the crankcase and
evaporative emissions controlsystems.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) in
automatic transmission vehicles or
the engine control module (ECM) in
manual transmission vehicles 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)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 (CO 2), nitrogen
(N 2), and water vapor.
Replacement Parts
The emissions control systems are
designed and certified to work
together 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 for repairs. Using lower
quality parts may increase the
emissions from your vehicle.
The emissions control systems are
covered by warranties separate from
the rest of your vehicle. Read your
warranty manual for moreinformation.
Emissions Controls
327
Technical Information
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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 affecting the metals.
The catalytic converter is referred 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 fire any
combustible materials that come
near it. Park your vehicle away from
high grass, dry leaves, or otherflammables.
A defective three way catalytic
converter contributes to air pollution,
and can impair your engine's
performance. 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 ineffective. ●
Keep the engine well maintained.
● Have your vehicle diagnosed and
repaired if it is misfiring,
backfiring, stalling, or otherwise
not running properly.
THREE WAY CATALYTIC CONVERTER
Three Way Catalytic Converter
328
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