2000 Buick LeSabre Will not start Replaced cam

Depends on what kind of noise and where its coming from.
Could be a problem inside the compressor, or the ac clutch, or something else.
Did you get a warranty with the compressor ?

Try depressing the gas pedal once before cranking. If it fires right up then replace the fuel filter. If not then you may need to replace the cam sensor.

Have you checked the catalytic converter? After 20 years they do pug up causing some of the problems you describe

Fuel trim will help,if the number are both positive at idle and go positive at a higher RPM you dealing with a fuel issue.There beem times the pressure regulator acts up,The EGR wont be the problem,you are stalling at idle,The famous crank,cam or ignition module,use a voltmeter or labscope measure the crank signal out put if its lower than 5 volts the ECM wont give a fuel signal.and the cam will not sychronize,I am going with the most popular failure a crank sensor as the solution,

2000 la sabra 102 code on reader replaced the sensor 6 months ago from same code what else could it be

A cam sensor only helps the computer when cranking and should not make it cut off. Most cam sensors do not go bad, but he magnet on the timing gear will deterorate. To fix that the timing cover will have to come off. Replace the crank sensor they get hot and stop working. When they cool down they will work again until it gets hot.

have you tested the fuel pressure . should be about 35 lbs while idling and theres also the maf sensor mass air flow

Have you had a diagnostic scan ran? It sounds like you may be having a problem with the MAF sensor. The MAF regulates the amount of air taken into the car. The sensor responds to the engine temperature.

Check the ECM if it has the number 1228253 on it, this is what is wrong with it. Gm trashed all of these bad ecms. Get a 16198264 as they do not cause a cutting off problem . Get a delco ecm , aftermarket units will give trouble and may be a rebuilt 1228253 which is junk.