1995 Oldsmobile Cutlass • 6 cylinder FWD Automatic • 226 miles

95 Oldsmobile Cutlass Supreme SL Sedan, engine running with rough idle and poor acceleration throughout driving speeds? Also foul odor of gas under the hood, Have a cracked exhaust manifold on back side of engine, no engine light on.
Jay Man
November 19, 2010.

Could be caused by one of the following below

Oxygen sensor.
Catalytic converter.
Fuel injectors dirty/sticking.
Mass airflow sensor/Airflow meter.
Throttle position sensor.
Crankshaft position sensor
Knock sensor
Manifold absolute pressure sensor.
EGR Valve
Fuel pressure regulator leaking or defective fuel pump.
False air leakage.
Fuel contamination.
Foul/defective spark plugs.
Open spark plug wires.
Ignition coil/Coil packs defective.
Incorrect ignition timing.
Cap and rotor.

Note: If it doesn't apply disregard it

Nov 20, 2010.