93 2.3L SOHC knocking and stalling at idle

[77Scout]

On the way to work Monday morning my 93 Grand Am started to knock and ping and lose power. When accelerating from a stop from idle it was the worst. It was especially bad if the A/C was running. I found the one vacuum line going from the little black box on top of the engine to the intake manifold had a crack in it. I changed all of the vacuum lines going to the black plastic box. The old lines were degraded and falling apart. I have about 150,000 miles on the car.

Does anyone have any idea what I need to do? I already checked the plugs (they are only about 3 months old, and I checked them again yesterday). At this point the knock is so bad that the car is pretty much undrivable, not to mention that it stalls at idle.

[Ridenour]

Welcome to the forum. There's several possibilities. My first guess is that you might have a bad crank position sensor. other then that:

wires
coil packs
ignition module