Chevrolet 1999 Corvette Owner's Manual download pdf (Page 137)

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Have you recently changed brands of fuel?

If so, be sure to fuel your vehicle with quality fuel (see

“Fuel” in the Index). Poor fuel quality will cause your

engine not to run as efficiently as designed. You may

notice this as stalling after start

-up, stalling when you

put the vehicle into gear, misfiring, hesitation on

acceleration or stumbling on acceleration. (These

conditions may go away once the engine is warmed up.)

This will be detected by the system and cause the light

to turn on.

If you experience one or more of these conditions,

change the fuel brand you use. It will require at least one

full tank of the proper fuel to turn the light off.

If none of the above steps have made the light turn off,

have your dealer or qualified service center check the

vehicle. Your dealer has the proper test equipment and

diagnostic tools to fix any mechanical or electrical

problems that may have developed.

Engine Oil Pressure Gage

The engine oil pressure

gage shows the engine oil

pressure in psi (pounds per

square inch) or kPa

(kilopascals) when the

engine is running.

Oil pressure should be 20 to 80 psi (140 to 550 kPa).

(In certain situations such as long, extended idles on hot

days, it could read as low as 6 psi (40 kPa) and still be

considered normal.) It may vary with engine speed,

outside temperature and oil viscosity, but readings above

the shaded area show the normal operating range.

Readings in the shaded area tell you that the engine is

low on oil, or that you might have some other oil

problem. See “Engine Oil” in the Index.

The engine oil pressure can also be displayed using the

GAGES button on the Driver Information Center (DIC).

See “Driver Information Center” in the Index.

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Chevrolet 1999 Corvette Owner's Manual Page 137