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,
I just dropped a '93 L67 from a PA Ultra into a '93 LeSabre that is running great :) with no problems except that under moderate throttle (~40-50%), the MIL comes on and is setting DTC 57 for the Boost Control Solenoid (the Service Manual isn't being of much help). When this happens, the engine...