1995 Pontiac Firebird Owner's Manual - Page 121

Malfunction Indicator Lamp (Service Engine Soon Light) NOTICE: If you keep driving your vehicle with this light on, after a while the emission controls won't work as well, your fuel economy won't be as good and your engine may not run as smoothly. This could lead to costly repairs not covered by your warranty. I SERVICE ~ ENGINE SOON . A computer monitors operation of your fuel, ignition and emission control systems. This should come on light when the ignition is on, but the engineis not running, as a check to show youit is working. If it does notcome on at all, have it fixed right away. it stays on,or it comes If on while you are driving, the computer is indicating that you have a problem.You should take your vehicle in for service soon. OBD I1 3.8L Engine (CodeK) Certain vehiclesare equipped with a new emission diagnostic system.You can tell whether your vehicle has this systemby reading our tune-up label located under the hood. If the label says OBD on it, the following 1 1 instructions apply. Your Pontiac Firebird is equipped with onboard an computer which monitors operation the emission of control system.This system is called OBD1 (On1 Board Diagnostics-Second Generation) and is intended to assure that emissions are at acceptable levels for the life of the vehicle, helping to produce a cleaner environment. The SERVICE ENGINE SOON light comes on to indicate when service is required. Malfunctions often will be indicated by the system 2-74