Owners Manual

Emission-control system maintenance
9-20 Vehicle care and maintenance
9
N00940800328
Your vehicle is equipped with an emission-
control system that meets all the requirements
of the U.S. Environmental Protection Agency
and Environment Canada. The emission-con-
trol system is made of:
 a positive crankcase ventilation system
 an evaporative emission-control system
 an exhaust emission-control system
To be sure the emission-control system works
properly, have your vehicle inspected and
maintained by an authorized Mitsubishi
Motors dealer or a repair facility of your
choice. This should be done at the time or
mileage specified in the “WARRANTY AND
MAINTENANCE MANUAL”.
These, and all the other “general” mainte-
nance services listed in this manual, need to
be performed to keep your vehicle running
properly and reliably.
You should also have an inspection and ser-
vice any time you suspect a malfunction.
N00940900228
Spark plugs must fire properly for good
engine performance and emission-control.
Do not reuse them by cleaning or regapping.
Change them at the mileage listed in the
“WARRANTY AND MAINTENANCE
MANUAL”.
N00941000040
Check the hose surfaces for any heat and
mechanical damage, hard and brittle rubber,
cracking, tears, cuts and abrasions. Pay spe-
cial attention to the hoses closest to high heat
sources such as the exhaust manifold. Check
all the hose connections, such as clamps and
couplings, to make sure they are secure and
that there are no leaks. If you see any wear or
damage, replace the hoses immediately.
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Have the valve clearance checked at an
authorized Mitsubishi Motors dealer at the
mileage specified in the “WARRANTY AND
MAINTENANCE MANUAL”.
If the engine sounds abnormally loud, have
adjustments made by an authorized
Mitsubishi Motors dealer.
N00941300173
Check these regularly for damage or leaks in
the fuel lines and connections. Check the fuel
tank filler cap for damage or looseness. Pay
special attention to the fuel lines closest to
Emission-control system
maintenance
NOTE
 To meet government regulations and pro-
mote cleaner air, your vehicle is equipped
with an onboard diagnostic system (OBD).
The engine electronic control module that
controls OBD functions stores various data
(especially about the exhaust emissions).
This data will be erased if the battery cable is
disconnected, which could make a rapid
diagnosis difficult. Do not disconnect the
battery cable when the engine malfunction
indicator (“SERVICE ENGINE SOON” or
“Check engine light”) is ON.
Spark plugs
NOTE
 Use the spark plugs listed under “Engine
specifications” on page 11-5 or plugs that are
exactly the same. Other plugs could cause
engine damage, performance problems or
radio noise.
Fuel hoses
Intake valve clearance
Fuel system (tank, pipe line and
connection, and fuel tank filler
cap)
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