Hoping someone might be able to give me some advice as to what's wrong with my 96 SS. When starting the car and putting it into gear the oil pressure light comes on and it occasionally stalls. When driving I have no issues while moving. When I come to a stop the oil light comes on and it sometimes stalls. It does start back up with some difficulty. When putting it into gear the RPM drops to around 500 and then the fuel light comes one. As soon as I feather the gas the light will go away. When turning the wheel all the way in gear the car will stall/stutter with the oil light on (when getting into my garage). I have had the home base delete, the fuel pump, oil cooler lines, oil switch sensor, temp sensors and some minor things recently done. The issues with the car started after having these parts replaced/work done. Mechanic says the throttle body, idle air control and oil pump look good but haven't been changed. 111,000 miles, mechanic says the plugs and wires look good. Would a tune up help? Anyone have any suggestions as to what could be wrong or what I should check? Thank you!