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rough idle

  1. Rough Idle, low power

    DTC's, Problems & Troubleshooting
    I have a 1993 LeSabre Limited with a 3800 Series I. Recently I have been experiencing poor acceleration and an intermittent rough idle. I have replaced the following: Fuel Pump, Sending Unit, Trans Vacuum Modulator, Mass Airflow Sensor, Fuel Pressure Regulator, Intake Manifold Gaskets, Spark...
  2. HELP!!! cant figure out whats wrong

    Ok my 02 grand prix gtp has been acting weird idles rough sometimes and even dies at idle sometimes. any time I hit the gas hard it sputters and wont go anywhere!! I did notice the T connector under my supercharger that connects vacuum lines was off and missing I replaced that and got that fixed...