P0507
Medium SeverityIdle Air Control System RPM Higher Than Expected
Engine System
P0507 — Instant Answer
Idle Air Control System RPM Higher Than Expected
Severity: MEDIUM SEVERITY
Meaning: Idle speed is too high. Something is allowing too much air into the engine at idle.
Safe to drive? Usually yes with caution, but confirm root cause before long trips.
Estimated repair cost: $0 - $80
Most common causes:
- 1. Vacuum leak (35-45% of cases)
- 2. Stuck IAC valve (10-25% of cases)
- 3. Throttle body sticking open (10-25% of cases)
- 4. Intake manifold gasket leak (10-25% of cases)
Symptoms
- ⚠️High idle speed (1000+ RPM)
- ⚠️Engine races at stops
- ⚠️Difficult to slow down
Common Causes
How to Diagnose P0507
- 1Check for vacuum leaks
- 2Clean throttle body
- 3Test IAC valve
- 4Check intake manifold gaskets
OEM Procedures for P0507
P0507 affects the Engine Control Module. Found 146 OEM service manual procedures.
12 90 120 Removing and installing/replacing control unit bracket (Cooper 4-door hatchback, Cooper 2-door hatchback, 2020-2023) - Replacement: Remount DME control unit and the integrated supply module (PDM)
12 90 120 Removing and installing/replacing control unit bracket (Cooper 4-door hatchback, Cooper 2-door hatchback, 2020-2023) - Replacement: Remount DME control unit and the integrated supply module (PDM)
12 90 120 Removing and installing/replacing control unit bracket (Cooper 4-door hatchback, Cooper 2-door hatchback, 2020-2023) - Replacement: Remount DME control unit and the integrated supply module (PDM)
12 90 120 Removing and installing/replacing control unit bracket (Cooper 4-door hatchback, Cooper 2-door hatchback, 2020-2023) - Replacement: Remount DME control unit and the integrated supply module (PDM)
12 90 120 Removing and installing/replacing control unit bracket (Cooper 4-door hatchback, Cooper 2-door hatchback, 2020-2023) - Replacement: Remount DME control unit and the integrated supply module (PDM)
12 90 120 Removing and installing/replacing control unit bracket (Cooper 4-door hatchback, Cooper 2-door hatchback, 2020-2023) - Replacement: Remount DME control unit and the integrated supply module (PDM)
12 90 120 Removing and installing/replacing control unit bracket (Cooper 4-door hatchback, Cooper 2-door hatchback, 2020-2023) - Replacement: Remount DME control unit and the integrated supply module (PDM)
12 90 120 Removing and installing/replacing control unit bracket (Cooper 4-door hatchback, Cooper 2-door hatchback, 2020-2023) - Replacement: Remount DME control unit and the integrated supply module (PDM)
Showing 8 of 146 procedures
OEM Diagnostic Flowchart
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Parts & Tools for This Job
Common parts shoppers buy for P0507 Idle Air Control System RPM Higher Than Expected.
Oxygen Sensor
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Spark Plugs
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Ignition Coils
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Mass Air Flow Sensor
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Fuel Injectors
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Engine Oil
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OBD2 scanner
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Check SpecificationsBattery tester
Check cranking and charging health before replacing expensive parts.
A weak battery can mimic alternator or starter problems.
Check SpecificationsMultimeter kit
Confirm voltage, continuity, and sensor power with one simple kit.
A meter is the cheapest way to rule out a bad circuit fast.
Check SpecificationsRelated Resources
Repair guides, symptom pages, and wiring diagrams related to P0507.
OEM Manual Evidence
Browse →Mil On With DTC P2279 Or P0507 After Throttle Body Servicing (B13060F) — 2013 Acura ILX Base, 2.0L Eng VIN 1 Service Manual ~ LEMON Manuals...
Mil On With DTC P2279 Or P0507 After Throttle Body Servicing (B13060F) — 2013 Acura ILX Base, 2.0L Eng VIN 1 Service Manual ~ LEMON Manuals...
Mil On With DTC P2279 Or P0507 After Throttle Body Servicing (B13060F) — 2013 Acura ILX Base, 2.4L Eng VIN 2 Service Manual ~ LEMON Manuals...
Mil On With DTC P2279 Or P0507 After Throttle Body Servicing (B13060F) — 2013 Acura ILX Base, 2.4L Eng VIN 2 Service Manual ~ LEMON Manuals...
Exact Vehicle Hubs
Browse →Related Codes
The idle air control (IAC) valve is not maintaining proper idle speed.
Idle speed is too low. The IAC is trying to raise it but cannot.
The engine is running lean on bank 1 — too much air or not enough fuel. The ECM has maxed out its fuel trim trying to compensate. Common causes include vacuum leaks and dirty MAF sensors.
Frequently Asked Questions
- Is high idle dangerous?
- Not directly dangerous but it wastes fuel and makes the car lurch forward when put in gear. Fix it for safety.
- Can a vacuum leak cause high idle?
- Yes — a vacuum leak lets unmetered air in, raising idle speed. The ECM adds fuel but cannot reduce the extra air.
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Author & Review
Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.
Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.
Last updated: 2026-10-30