1991 Honda Civic DX 4-Door 1.5L

Driving 80mph down highway and engine just died. Pulled over and no start. No error codes. Engine cranks, but no indication it will start. On side of road, I was only able to pull distributor cap and check that rotor screw had not come unscrewed again. Where should I start?

If the CEL comes on and goes off normally, when the ignition switch is turned to ON (Position II), then replace the Ignition Control Module (ICM) and coil:

https://www.askmehelpdesk.com/cars-trucks/faq-how-troubleshoot-repair-maintain-hondas-selected-other-vehicles-46563-4.html#post265896

Worked like a charm. Thanks for the help.

Nice job. Did you replace both the ICM and coil?

Yes, I replaced both. $120 for both at Autozone. One has a lifetime warranty and the other 2 years. Can't remember which is which though. Pretty simple fix. Took about 1/2 hour.

Smart. You shouldn't need to replace them again for 120,000 miles or 10 years.