1994 Honda Civic 1994 Honda Civic hard to start when its ho

Hi kenette,

Thank you for the donation.

When engine could not start, it could be caused by ignition sparks or fuel supply. Follow the following link and see if you can come up with any idea what is missing and we can continue from there.

https://www.2carpros.com/kpages/first_things.htm

Well to test a plugged catalytic convertor without any speciality tools, you can remove the upstream o2 sensor and see if you free up some power. However, the proper way to test a plugged catalytic would be to hook up a vacuum gauge to the intake manifold and measure vacuum. You can also use an infared temperature gun, scope out o2's, etc.

Your proper doesn't really sound like a plugged cat. Though. These cars are known for failing distributors, you may be experiencing weak spark once the car reaches operating temperature. Remove each plug, what do they look like? Are there any trouble codes?

Let me know what you find so I can further assist you.