1996 Pontiac Trans Sport Owner's Manual - Page 151

If the light stops flashing and remains on steady, see "If the Light Is On Steady" following. If the light continues to flash, when it is safe to do so, stop the vehicle, Put your vehicle inPARK (P). Turn the key off, wait at least 10 seconds and restart the engine. If the light remains onsteady, see "If the Light Is On Steady" following. If the light is still flashingfollow the previous steps, and drivethe vehicle to your dealer or qualified service center for service. Are you low on fuel? As your engine starts run out of fuel, your engine may to not run as efficiently as designed since small amounts of air are sucked into the fuel line causing a misfire. The system can detect this. Adding fuelshould correct this condition. Make sureto install the fuel cap properly. It will take a few driving trips to 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,iswarmed up.) This will be detected by the system and cause the light to turn on. If the LightIs On Steady You may be able to correct theemission system malfunction by considering the following: Did you just put fuel into your vehicle? If so, reinstall the fuel cap, making sure fully install to the cap. Thediagnostic system can determine the fusel if 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 drivethrough a deep puddle of water? If you experience this condition, change the fuel brand you use. It will require at least one full tank the of proper fuel to turn the light off. If none of the abovesteps have madethe light turn off, have your dealer or qualified service centercheck the vehicle. Your dealer has the proper test equipment and diagnostic tools to fix any mechanical orelectrical problems that may have developed. 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. 2-79