Why wont my car idle, drives fine but I have to keep accel pedal pushed in to stop RPM dropping below 700 RPM & stalling?

April 2021 1 28 Report

Why wont my car idle, drives fine but I have to keep accel pedal pushed in to stop RPM dropping below 700 RPM & stalling?

Cars & Trucks - Hyundai - XG300 - 2001 Hyundai XG300

Have the fault codes read to find the sensor that has failed
if it happening when you have the foot on the brake, it could be a problem brake booster