93 Civic Si is jerking and staling and sometimes wont start?

The jerking and stalling issues in your 1993 Civic Si could be caused by several factors, including a faulty ignition system, a dirty fuel filter, or a malfunctioning fuel pump. Additionally, issues with the air intake system or a failing sensor (like the oxygen sensor or throttle position sensor) could contribute to these symptoms. It's advisable to check for error codes, inspect the ignition components, and evaluate the fuel delivery system to pinpoint the exact cause. If the problem persists, consulting a mechanic for a thorough diagnosis may be necessary.