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:
Trans Vacuum Modulator,
Mass Airflow Sensor,
Fuel Pressure Regulator,
Intake Manifold Gaskets,
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...