1998 Pontiac Firebird Owner's Manual - Page 143

Have you recently changed brands fuel? of Oil Pressure Gage If so, be sureto fuel your vehicle with quality fuel (see "Fuel" in the Index). Poor quality will cause your fuel engine notto run as efficiently as designed. may You notice this asstalling after start-up, stalling when you put the vehicleinto gear, misfiring, hesitation on acceleration or stumblingon acceleration. (These conditions maygo away once the engine warmed up.) is This will be detectedby the system and cause the light to turn on. \*0 / 120 0 If you experience one or more these conditions, of change the fuel brand you use. It will require at least one full tank of the proper fuel turn the light off. to If none of the above steps have made light turn off, the have your dealer qualified service center check the or vehicle. Your dealer has the proper test equipment and diagnostic tools to any mechanicalor electrical fix problems that may have developed. 3800 V6 Engine 5 7 VS Engine .L One of these gagesmay tell you there could be a problem withyour engine oil pressure. The engine oil pressure gage shows the engine pressure oil in psi (pounds per square inch)n the U i e States, or kpa i ntd (kilopascals) in Canada, when the engine is running. On the 5.7LV8 engine, oil pressure shouldbe 20 to 80 psi (140 to 550 P a ) . On the 3800 V6 engine, the oil pressure should be between 20 and 120 psi (140 to Wa). It 827 may vary with enginespeed, outside temperature andoil viscosity, but readings above the red area show the normal operating range. Readingsin the r d area t l you that the e el engine is lowon oil, or that you might have some other oil problem. See "Engine Oil" in the Index.