2000 Cadillac Catera Owners Manual

Are you low on fuel?As your engine starts to run out of fuel, your engine maynot run as efficiently as designed since small amounts ofair are sucked into the fuel line causing a misfire. Thesystem can detect this. Adding fuel should correct thiscondition. Make sure to install the fuel cap properly.See “Filling Your Tank” in the Index. It will take afew 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 yourengine not to run as efficiently as designed. You maynotice this as stalling after start-up, stalling when you putthe vehicle into gear, misfiring, hesitation on accelerationor stumbling on acceleration. (These conditions may goaway once the engine is warmed up.) This will be detectedby 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 leastone 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 thevehicle. Your dealer has the proper test equipment anddiagnostic tools to fix any mechanical or electricalproblems that may have developed.Emissions Inspection and Maintenance ProgramsSome state/provincial and local governments have ormay begin programs to inspect the emission controlequipment on your vehicle. Failure to pass thisinspection could prevent you from getting avehicle registration.Here are some things you need to know in order to helpyour vehicle pass an inspection:Your vehicle will not pass this inspection if theCHECK ENGINE light is on or not working properly.Your vehicle will not pass this inspection if theOBD (on-board diagnostic) system determinesthat critical emission control systems have not beencompletely diagnosed by the system. The vehicle wouldbe considered not ready for inspection. This can happenif you have recently replaced your battery or if yourbattery has run down. The diagnostic system is designedto evaluate critical emission control systems duringnormal driving. This may take several days of routinedriving. If you have done this and your vehicle stilldoes not pass the inspection for lack of OBD systemreadiness, see your dealer or qualified service centerto prepare the vehicle for inspection.2-74