Car stalls while driving down the road?

The car died before anything was changed. Yes I have smelt gas a few times.
The Prior to the car breaking down it was choking. The engine is a 3.1. The spark plugs and a sensor was just done. Now it starts and its shaking and backfiring.

I had it wrong. It was the coil associated wl the spark plug (there are three and one was replaced).
Per your last post could that be the reason behind the car breaking down?
I will have those injector checked.

Ok I will have that done within the next few days. Should I still have the ohm tested?

Okay, I will keep you posted. Thank you so much. Hopefully, once all that is done everything is ok.

Not to good. New spark plugs, spark plug wiring, new coil piece. Car still backfiring really bad, also the oil light is now on and the car doesn't stay on.
He thinks it may be the oil pump.

Not too sure if he did that. I'm truly considering having it towed somewhere. It's just so hard to trust anyone. He said when he hooked the car to the device that reads the code. It keeps saying misfire.

Before all this the service engine light was on

Hi. Unfortunately I do not. Let me start at the beginning. 1)The service engine light was on. 2)The car had that choking effect to it. It still drove but you could feel the hesitation. 3) I had it checked. He said quite a few codes came up. One being the mass air flow sensor. When he would disconnect it the car sound smoth. When he would reconnect it. That choking sound came back. 4) He said the was still drivable, so after a week I drove it and it broke down on me w/ no warning. All the lights flashed allowing me enough time to pull off the rode. After that it would not start. I had to get it towed. 5). To speed up he had me new spark plugs, fhe wiring and a coil. The car now starts but it still backfires and choking.
I just found out that he did not replace the air flow sensor yet. And now the oil light is on and he says I probably need an oil pump.
I am at my wits end.I do not have money for experimenting.

Hi. Yes and you are correct. Which is why I shared everything. This is my first time doing sonething like this. Never in my wildest dreams did I think there would be someone nice as you educating me. I will definitely have that MF sensor replaced. Ince that is done I do not know what direction to go in

Hi. This is Stacy w/ the Oldsmobile. Well I finally got the car to the shop. The mechanic said the car needs an engine. The cost would be $1,800. Undecided on what to do.

For a week the engine would run for 30 min and then quit. It would restart right away. Now it starts and quits. I have replaced iac, crank sensor, computer, coil packs and module, now i'm lost. It seems to have prewssure in the fuel line at the schrader valve. I'm wondering if the fuel pump relay or ignition switch could be the problem.