Check the crank angle sensor usually about $150 to replace
sounds like a crankshaft positioning sensor. must be at low speeds and stop signs?
I had that same exact problem with a 1995 Jeep Cherokee, and it was indeed a bad oxygen sensor. Relatively cheap repair too.
There are several things that can cause your 1990 Volvo 740 to stall while driving. The most common cause is a bad fuel pump.
A dodge pickup 1500 would stall out while driving because of a defective air filter.
The first thing I would try would be cleaning the throttle body with some carb and choke cleaner. When they get really dirty it can cause you to stall at slow speeds. On my 93 there is a Crank Shaft Position sensor. Mine started to melt and the jeep stalled at weired times for a week. If your jeep has a lock up solenoid in your tranny and its stuck on, then you will stall at stops Not sure about a 94, but my 2000 would stall while driving at highway speeds. Dealer replaced the oxygen sensor and it fixed the problem.
a bad idle sensor control valve to start with or your egr valve has a vaccum leak
crankshaft position censor
main fuel relay going bad. Eventually car will cut off while driving.
There are several things which could be causing the car to stall out while driving. The most common and least difficult problem is that the spark plugs may need to be changed.
A bad crank sensor will definitely cause the car to stall. Eventually the car will stop starting up again, or if it does, it will die down around ten minutes. A good thing to do if you're sure it's the crank sensor, replace it.
Problem with Crank sensor will cause 2001 Grand Prix not start when warm until it cool down? will this problem also cause vehicle to stall while driving?