1990 acura integra rough idle and stall when stopped at intersection usually after about five minutes of driving. Has had a history of stalling when stopped on a slight slope but now it's stalls regularly at a stop sign or light.

 

Check your ignition, cap, rotor and see how the plugs look. Spray the intake side with some water or carb cleaner (COLD ENGINE) to look for vacuum leaks. Also pull off your IACV and clean it out. It could be gunked up

 

Check your Ignition switch. The contacts can be dirty. You don't need to replace the whole switch. Just sand out the contacts.

 

DIY Ignition switch cleaning - Team Integra Forums - Team Integra