P0507 Idle Control System (High RPM) | Symptoms, Causes & Vacuum Leaks

Is your engine racing at a stoplight, or does the idle refuse to drop down when you park? You likely have code P0507 (Idle Control System RPM Higher Than Expected). This means the engine computer is trying to lower the idle speed but cannot, usually because extra air is leaking into the intake. In this video, we explain the relationship between the Throttle Body, the Idle Air Control (IAC) valve, and vacuum leaks, and how to pinpoint the culprit. Timecodes: 00:00 - Intro: What is P0507? 00:23 - Technical Definition (Target Idle vs. Actual Idle) 00:40 - Symptoms (High Idle, "Hunting" Idle, Hard Shifting) 00:57 - Top Causes (Vacuum Leaks, Dirty Throttle Body, PCV Valve) 01:45 - Diagnostic Steps & Solutions 02:36 - Summary Need the full diagnostic flowchart? Read our full guide for step-by-step testing procedures: ► Full Guide: https://obdadvisor.com/codes/code/p05... Recommended Tools for P0507: Smoke Machine (The #1 tool for finding hidden vacuum leaks) Electronic Throttle Body Cleaner (for removing carbon buildup) OBD2 Scanner with Live Data About OBDAdvisor: We provide professional-grade automotive diagnostics and repair guides, reviewed by certified mechanics to ensure you get the right fix the first time. Disclaimer: This video is for educational purposes only. Always consult your vehicle’s repair manual and take appropriate safety precautions when working on your car. Note: On many modern electronic throttle vehicles, cleaning the throttle body may require a "Relearn Procedure" with a scan tool. #P0507 #HighIdle #VacuumLeak #OBDAdvisor #CarRepair