My 1990 Civic SI Hatch isnt idling. It's turns over and starts, but immediately dies unless I'm giving it gas. Even then it runs pretty rough all the sudden when I drove it yesterday and hour from town and back. Once I had it running for a few seconds while holding the throttle a bit it flashed code 14. I have no clue whats happening. Just passed smog yesterday and haven't been in the engine bay since then, until it wouldn't run today.

 

Well Code 14 is for the Idle air control valve. so that is probably the issue.