1998 Oldsmobile Cutlass Owner's Manual - Page 119

Malfunction Indicator Lamp (Check Engine Light) Your vehicle is equipped with a computer which monitors operationof the fuel, ignition and emission control systems. NOTICE: If you keep driving your vehicle withthis light on, after a while, your emission controls may not work as well, your fueleconomy maynot beas good and your engine may not as smoothly. run This could lead costly repairs that may not be to covered byyour warranty. CHECK 1 This system is called OBD 1 (On-Board Diagnostics-Second Generation) and intended to is assure that emissions are at acceptable levels the life for of the vehicle, helping to producecleaner a environment. The CHECK ENGINE light comes on to indicate that thereis a problem and serviceis required. Malfunctions often will indicated bythe system be before any problem is apparent. This may prevent more This serious damage to your vehicle. system is also designed to assist your service technician correctly in diagnosing any malfunction. Modifications made to engine, transaxle, the exhaust or fuel system your vehicle or the of replacement of the original tires with other than those of the same Tire Performance Criteria (TPC) can affect your vehicle's emission controls and may causethe light to come on. modifications to these systems could lead to costly repairs not coveredby your warranty. This in may also result a failure to pass a required Emission Inspection/Maintenance test.