OK gentleman I have a 97 lesabre with the 3.8 series 2. I bought it for a couple hundred bucjs. The motor starts rough, idles rough, and has a severe lack of power if u put the throttle to the floor it will putter and die. It will drive down the road but u can only give it very little throttle. If i take of the air box and place my hand halfway over the air intake the car runs great throttle is responsive and no rough idle. I'm basically manually choking the motor which to me means its getting for air than fuel. Any suggestion on how to remedy this. Injectors maybe? Or some sensor? As a side note I have put a new maf, mas, and crankshaft positioning sensor in it.