99 civic 1.6L SOHC, Test drove by my wife, but when I went to pick it up, run - it didn't. New fuel pump, plugs, and plug wires later, it starts, but as soon as the key springs to the "run" position, it dies. If I keep clicking it into "start", it will keep running, but 30 sec into the click-on, click-off routine, it still won't stay running. When it slicks off, it dies like fuel/ignition stopped completely... there's no "almost running" in the transition. What changes are there between "start" and "run"?