Hi, I have a '90 Integra, all stock. Car won't start when it's been sitting in the sun (turns over but won't catch or if it does it dies right away), but later in the evening fires right up. Also stutters a bit under light throttle.

Hasn't had a tune up in a long time, but did replace the plugs recently.

I'm new to working on Honda's, but have pulled codes and worked on Ford engines, so should be able to figure it out with a little guidance. Any advice on pulling codes, where to start first etc?

Couldn't find any similar problems in search, don't Honda's every have start problems?!

Thanks.

G.