My car stalls and stops at intersections.

Hello, Stalling concerns are a result of an engine performance issue typically that needs to have troubleshooting to figure out. Testing must be performed to see what element of the following is weak or or missing: 1) Fuel delivery 2) Ignition spark 3) Air coming into the intake -- either restricted or too much 4) Exhaust flow restricted Is there a check engine warning light illuminated? If so, testing can start there to find out what trouble codes might be present, aiding with clues as to where to start looking for your problem. If not, each system I listed must be tested to see if it is working properly. A well trained technician with a good diagnostic tool that has data monitoring capabilities and a shop manual to use for reference will be able to get to the bottom of your concern with little difficulty. Additionally, a charging system issue can influence vehicle electrical power, causing it stalls also. However, typically these issues will have other symptoms which you don't seem to be mentioning.