How to check your electrical throttle body for 2004 Chevy cavalier

You will need a diagnostic tool that can monitor components as well as check for any diagnostic trouble codes (DTC's). You will also need a voltmeter / ohmmeter / multi-tester, and a fuel pressure gauge. First check for any codes. Then check for fuel pressure at the engine. Check for ignition spark, proper air intake, exhaust restrictions. Check engine timing and compression. Since the concern happened after an event (the ice storm), inspect the vehicle underneath for any signs of damage physically to any components. Here are shops near you that can be of help: https://repairpal.com/repair-shops/chevrolet-repair-and-service-in-farmington-missouri