2002 Saturn Station Wagon • 6 cylinder FWD Automatic • 130 miles

02 saturn lw300 130k miles. Idles smoothly, revs pretty well, once in gear has no power. Bogs down when accelerated - hard to get up to speed, shifts rough, whistling noise almost impossible to get up hills
March 20, 2011.

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.
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 and keep testing.

Mar 20, 2011.