1996 Pontiac Sunfire Owner's Manual - Page 123

If the Light Is On Steady Have you recently changed brands of fuel? Did you just putfuel into your vehicle? If so, reinstall the fuel cap, making sure to fully install the cap. The diagnostic system can determine if the fuel cap has been left off or improperly installed. This will allow fuel to evaporate into the atmosphere. A few driving trips should turn the light off. Did you just drive through a deep puddle of water? If so, be sure to fuel your vehicle with quality fuel (see "Fuel" in the Index). Poor fuel quality willcause 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 theengine is warmed up.) This will be detected by the system and cause the light to turn on. If so, your electricalsystem may be wet. The condition will usually be corrected when the electrical system dries out. A few driving trips should turn the light off. Are you low on fuel? As your engine starts to run out of fuel, your engine may not run as efficiently as designed since small amounts of air are sucked into the fuel linecausing a misfire. The system can detectthis. Adding fuel should correct this condition. Make sure to install the fuel cap properly. It will take a few driving trips to turn the light off. If you experience this condition,change the fuel brand yuu use. It will require at least onefull tank of the off. proper fuel to turn the light 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 f i x any mechanical or electrical problems that may have developed. 2-70