1997 Oldsmobile Cutlass Supreme Owner's Manual - Page 114

If the LightIs On Steady You may be able to correct the emission system malfunction by considering the following: Did you recently put fuel into your vehicle? If so, reinstall thefuel cap, making sure to fully install the cap. The diagnostic system can determine if the fuel cap has been left off or improperly installed. A loose or missing fuel cap will allow fuel to evaporateinto the atmosphere. A few driving trips with the cap properly installed should turn the light off. Did youjust drive through a deep puddle of water? If so, your electrical system may be wet.The condition will usually be corrected when the electrical system dries out. A few driving trips should turn the light off. 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 moreof these conditions, change the fuel brand you use. It will require at least full tank of the properfuel to turn the light off. If none of the above steps have made the light turn of have your retailer or qualified service center check the vehicle. Your retailer has the proper test equipment and diagnostic tools to fix any mechanical or electrical problems that may have developed. 2-57