2012 CHEVROLET CORVETTE C6 fuel pump

Black plate (13,1)Chevrolet Corvette Owner Manual - 2012
Instruments and Controls 5-13
Here are five things that some
owners ask about. All these things
are normal and do not indicate that
anything is wrong with the fuel
gauge.
.At the service station, the gas
pump shuts off before the gauge
reads the full.
.It takes a little more or less
fuel to fill up than the gauge
indicated. For example, the
gauge may have indicated half
full, but it took a little more or
less than half of the tank's
capacity to fill the tank.
.The gauge pointer may move
while cornering, braking or
speeding up.
.The gauge may not indicate the
tank is empty when the ignition
is turned off.
.The gauge reading may change
slightly within the first several
minutes after starting the
vehicle.See
“DIC Operation and Displays”
in Driver Information Center (DIC)
on page 5‑26 for more information.
Boost Gauge (ZR1)
Metric
English
This gauge indicates vacuum during
light to moderate throttle and boost
under heavier throttle.
It displays the air pressure level in
the intake manifold before it enters
the engine's combustion chamber.
The gauge is automatically centered
at zero every time the engine is
started. Actual vacuum or boost is
displayed from this zero point.
Changes in ambient pressure,
such as driving in mountains and
changing weather, will slightly
change the zero reading.

Black plate (48,1)Chevrolet Corvette Owner Manual - 2012
9-48 Driving and Operating
Fuel
Use of the recommended fuel is
an important part of the proper
maintenance of this vehicle. To help
keep the engine clean and maintain
optimum vehicle performance, we
recommend the use of gasoline
advertised as TOP TIER Detergent
Gasoline.
Look for the TOP TIER label on the
fuel pump to ensure gasoline meets
enhanced detergency standards
developed by auto companies. A list
of marketers providing TOP TIER
Detergent Gasoline can be found at
www.toptiergas.com.
The eighth digit of the Vehicle
Identification Number (VIN) shows
the code letter or number that
identifies the vehicle's engine.
The VIN is at the top left of the
instrument panel. SeeVehicle
Identification Number (VIN) on
page 12‑1.
Recommended Fuel
If the vehicle has the 6.2L V8 engine
(VIN Code W), use premium
unleaded gasoline with a posted
octane rating of 91 or higher.
You can also use regular unleaded
gasoline rated at 87 octane or
higher, but the vehicle's acceleration
could be slightly reduced, and a
slight audible knocking noise,
commonly referred to as spark
knock, might be heard. If the octane
is less than 87, a heavy knocking
noise might be heard when driving.
If this occurs, use a gasoline rated
at 87 octane or higher as soon as
possible. Otherwise, you could
damage the engine. If heavy
knocking is heard when using
gasoline rated at 87 octane or
higher, the engine needs service.
If the vehicle has the 6.2L V8 engine
(VIN Code T) or the 7.0L V8 engine
(VIN Code E), use premium
unleaded gasoline with a posted
octane rating of 91 or higher.

Black plate (50,1)Chevrolet Corvette Owner Manual - 2012
9-50 Driving and Operating
Fuel Additives
To provide cleaner air, all gasolines
in the United States are now
required to contain additives that
help prevent engine and fuel system
deposits from forming, allowing the
emission control system to work
properly. In most cases, nothing
should have to be added to the fuel.
However, some gasolines contain
only the minimum amount of
additive required to meet U.S.
Environmental Protection Agency
regulations. To help keep fuel
injectors and intake valves clean
and avoid problems due to dirty
injectors or valves, look for gasoline
that is advertised as TOP TIER
Detergent Gasoline. Look for the
TOP TIER label on the fuel pump to
ensure gasoline meets enhanced
detergency standards developed
by the auto companies. A list of
marketers providing TOP TIER
Detergent Gasoline can be found
at www.toptiergas.com.For customers who do not use TOP
TIER Detergent Gasoline regularly,
one bottle of GM Fuel System
Treatment PLUS, added to the fuel
tank at every engine oil change,
can help clean deposits from fuel
injectors and intake valves. GM Fuel
System Treatment PLUS is the only
gasoline additive recommended by
General Motors. It is available at
your dealer.
Gasolines containing oxygenates,
such as ethers and ethanol,
and reformulated gasolines
might be available in your area.
We recommend that you use these
gasolines, if they comply with the
specifications described earlier.
However, E85 (85% ethanol) and
other fuels containing more than
15% ethanol must not be used in
vehicles that were not designed for
those fuels.
Notice:
This vehicle was not
designed for fuel that contains
methanol. Do not use fuel
containing methanol. It can
corrode metal parts in the fuel
system and also damage plastic
and rubber parts. That damage
would not be covered under the
vehicle warranty.
Some gasolines that are
not reformulated for low
emissions can contain an
octane-enhancing additive called
methylcyclopentadienyl manganese
tricarbonyl (MMT); ask the attendant
where you buy gasoline whether the
fuel contains MMT. We recommend
against the use of such gasolines.
Fuels containing MMT can reduce
spark plug life and affect emission
control system performance.
The malfunction indicator lamp
might turn on. If this occurs, return
to your dealer for service.

Black plate (51,1)Chevrolet Corvette Owner Manual - 2012
Driving and Operating 9-51
Filling the Tank
{WARNING
Fuel vapor burns violently and a
fuel fire can cause bad injuries.
To help avoid injuries to you and
others, read and follow all the
instructions on the fuel pump
island. Turn off the engine when
refueling. Do not smoke near fuel
or when refueling the vehicle.
Do not use cellular phones.
Keep sparks, flames, and
smoking materials away from
fuel. Do not leave the fuel pump
unattended when refueling the
vehicle. This is against the law in
some places. Do not re-enter the
vehicle while pumping fuel. Keep
children away from the fuel pump;
never let children pump fuel.
The tethered fuel cap is located
behind a hinged fuel door on the
driver side of the vehicle.The fuel door release button is
located on the instrument panel
to the left of the steering wheel.
Push the button to release the
fuel door.

Black plate (52,1)Chevrolet Corvette Owner Manual - 2012
9-52 Driving and Operating
There is also a manual fuel door
release tab. It is located against the
upper trim in the rear compartment
on the driver side of the vehicle.
Pull the tab to release the fuel door.
To remove the fuel cap, turn it
slowly counterclockwise.
While refueling, let the cap hang by
the tether below the fuel fill opening.
{WARNING
Fuel can spray out on you if you
open the fuel cap too quickly.
If you spill fuel and then
something ignites it, you could be
badly burned. This spray can
happen if the tank is nearly full,
and is more likely in hot weather.
Open the fuel cap slowly and
wait for any hiss noise to stop.
Then unscrew the cap all the way.
Be careful not to spill fuel. Do not
top off or overfill the tank and wait a
few seconds after you have finished
pumping before removing the
nozzle. Clean fuel from painted
surfaces as soon as possible.
See Exterior Care on page 10‑82. When replacing the fuel cap,
turn it clockwise until it clicks.
Make sure the cap is fully installed.
The diagnostic system can
determine if the fuel cap has been
left off or improperly installed.
This would allow fuel to
evaporate into the atmosphere.
See
Malfunction Indicator Lamp on
page 5‑19.
The CHECK GAS CAP message
displays on the Driver Information
Center (DIC) if the fuel cap is not
properly installed. See Fuel System
Messages on page 5‑41 for more
information.

Black plate (53,1)Chevrolet Corvette Owner Manual - 2012
Driving and Operating 9-53
{WARNING
If a fire starts while you are
refueling, do not remove the
nozzle. Shut off the flow of fuel
by shutting off the pump or by
notifying the station attendant.
Leave the area immediately.
Notice: If you need a new fuel
cap, be sure to get the right type.
Your dealer can get one for you.
If you get the wrong type, it may
not fit properly. This may cause
the malfunction indicator lamp to
light and may damage the fuel
tank and emissions system.
See Malfunction Indicator Lamp
on page 5‑19.
Filling a Portable Fuel
Container
{WARNING
Never fill a portable fuel container
while it is in the vehicle. Static
electricity discharge from the
container can ignite the fuel
vapor. You can be badly burned
and the vehicle damaged if this
occurs. To help avoid injury to you
and others:
.Dispense fuel only into
approved containers.
.Do not fill a container while
it is inside a vehicle, in a
vehicle's trunk, pickup bed,
or on any surface other than
the ground.
(Continued)
WARNING (Continued)
.Bring the fill nozzle in contact
with the inside of the fill
opening before operating the
nozzle. Contact should be
maintained until the filling is
complete.
.Do not smoke while
pumping fuel.
.Do not use a cellular phone
while pumping fuel.

Black plate (49,1)Chevrolet Corvette Owner Manual - 2012
Vehicle Care 10-49
FuseUsage
3 Antilock Brake
System (ABS)/Real
Time Damping
4 Wiper
5 Stoplamps/
Back-Up Lamps
6 Oxygen Sensor
7 Battery Main 5
8 Parking Lamps
9 Powertrain Relay
Input/Electronic
Throttle Control
10 Manual
Transmission
Solenoids
11 Antilock Brake
System
12 Odd Numbered
Fuel Injectors Fuse
Usage
13 Electronic
Suspension
Control (Option)
14 Canister Purge
Solenoid, Mass Air
Flow Sensor
15 Air Conditioner
Compressor
16 Even Numbered
Fuel Injectors
17 Windshield Washer
18 Headlamp Washer
19 Passenger Side
Low-Beam
Headlamp
20 Fuel Pump
(except ZR1)
21 Driver Side
Low-Beam
Headlamp Fuse
Usage
22 Front Fog Lamp
23 Passenger Side
High-Beam
Headlamp
24 Driver Side
High-Beam
Headlamp
56 Engine Control
Module (ECM)/
Transmission
Control
Module (TCM)/
Easy Key Module
J-Style Fuses Usage
25 Cooling Fan
26 Battery Main 3
27 Antilock Brake
System

Black plate (50,1)Chevrolet Corvette Owner Manual - 2012
10-50 Vehicle Care
J-StyleFuses Usage
28 Heating/Ventilation/
Air Conditioning
Blower
29 Battery Main 2
30 Starter
31 Audio Amplifier
32 Intercooler Pump
33 Battery Main 1
Micro-
Relays Usage
34 Horn
35 Air Conditioning
Compressor
36 Windshield Washer
37 Parking Lamps,
Fog Lamps
38 Front Fog Lamp Micro-
Relays Usage
39 High-Beam
Headlamp
46 Headlamp Washer
55 Fuel Pump
(except ZR1)
Mini-Relays Usage 40 Rear Defog
41 Windshield Wiper
High/Low
42 Windshield Wiper
Run/Accessory
43 Crank
44 Powertrain
Ignition 1
45 Windshield Wiper
On/Off
47 Low-Beam
Headlamp Spare Fuses Usage
48 Spare
49 Spare
50 Spare
51 Spare
52 Spare
53 Spare
54 Fuse Puller
Diodes Usage § Diode 1
§ Wiper
§ Diode 2