Saturn 2009 ASTRA User Manual
Page 94
Light On Steady: An emission
control system malfunction has been
detected on the vehicle. Diagnosis
and service might be required.
An emission system malfunction
might be corrected by doing the
following:
•
Make sure the fuel cap is fully
installed. See Filling the Tank
on page 8-36. The diagnostic
system can determine if the
fuel cap has been left off or
improperly installed. A loose or
missing fuel cap allows fuel
to evaporate into the atmosphere.
A few driving trips with the cap
properly installed should turn
the light off.
•
If the vehicle has been driven
through a deep puddle of water,
the vehicle’s electrical system
might be wet. The condition
is usually corrected when
the electrical system dries out.
A few driving trips should turn
the light off.
•
Make sure to fuel the vehicle
with quality fuel. Poor fuel
quality causes the engine not to
run as efficiently as designed
and may cause: stalling after
start-up, stalling when the vehicle
is changed into gear, misfiring,
hesitation on acceleration,
or stumbling on acceleration.
These conditions might go away
once the engine is warmed up.
If one or more of these conditions
occurs, change the fuel brand
used. It will require at least
one full tank of the proper fuel
to turn the light off.
See Gasoline Octane on
page 8-34.
If none of the above have made
the light turn off, have your
dealer/retailer check the vehicle.
The dealer/retailer has the proper
test equipment and diagnostic
tools to fix any mechanical or
electrical problems that might have
developed.
Emissions Inspection and
Maintenance Programs
Some state/provincial and local
governments have or might begin
programs to inspect the emission
control equipment on your vehicle.
Failure to pass this inspection
could prevent getting a vehicle
registration.
Here are some things to know to
help the vehicle pass an inspection:
•
The vehicle will not pass this
inspection if the check engine
light is on with the engine
running, or if the key is in the
ON/RUN and the light is not on.
4-20
Instruments and Controls