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Home / Codes / P0507
DTC code page

P0507: Idle Control System RPM Higher Than Expected

Quick answer: The engine is idling higher than the ECU intends and the idle-control strategy cannot bring it back down normally.

Drivers also search this fault as idle too high code, high idle control code, RPM higher than expected at idle.

Severity: medium Family: powertrain Related paths: 11
Meaning

What P0507 usually means

P0507 means the ECU sees idle speed above target even though it has already reduced idle control authority. In the real world, this is often a vacuum leak, throttle-body issue, idle relearn problem, or a PCV path that is flowing more air than expected.

Fast triage

Start here before chasing parts

  • Scan first: save freeze-frame and pending codes before clearing anything.
  • Confirm the complaint: compare the stored code with current drivability symptoms.
  • Use context: trims, live data, and related codes usually narrow the fault faster than guesswork.
  • Work simplest to hardest: leaks, connectors, maintenance items, and known patterns before expensive components.
Initial checks

What to check first

  • Look for obvious high-idle causes: intake leaks, broken PCV hose, or a throttle body recently cleaned or replaced.
  • Check whether idle changed right after battery disconnect or throttle work, which can point to relearn rather than failure.
  • Listen for whistling or hissing that suggests unmetered air.
Driving risk

Can you keep driving?

P0507 is usually driveable short-term, but persistent high idle can make the vehicle unpleasant to control and may hide a significant intake leak.

Moderate urgency: This code often allows short-term driving, but the right fix usually comes faster when you diagnose it early instead of waiting for more codes.
Symptoms

Common symptoms

  • Rough Idle
  • high idle
  • surging idle
  • rough idle after cleaning throttle body
  • whistling noise
  • hard downshift to stop
Likely causes

Common causes behind this code

  • Vacuum leak or unmetered air entering at idle
  • Dirty or sticking throttle body
  • Idle or throttle relearn not completed after service
  • PCV valve or hose allowing too much air
  • Throttle plate or actuator not returning fully as expected

Cause phrases often tied to this code: vacuum leak, dirty throttle body, idle relearn needed, PCV issue, throttle plate not closing.

Diagnostic order

Suggested workflow

  1. Inspect for vacuum leaks, especially at PCV hoses and intake boots.
  2. Inspect and clean the throttle body if carbon buildup is preventing stable idle control.
  3. Perform the correct idle or throttle relearn procedure if recent service disturbed the system.
  4. If the fault remains, verify throttle-body operation and scan-tool idle control data.
Avoid guesswork

Common mistakes

  • Replacing the throttle body immediately without checking for a vacuum leak.
  • Skipping the relearn procedure after throttle-body or battery service.
  • Treating a high-idle complaint as ignition-related just because the idle feels rough.
Repair path

Practical fix guidance

  • Fix vacuum leaks or PCV faults first, then repeat the relearn if needed.
  • If the throttle body is the problem, verify wiring and command behavior before replacement.
  • Confirm hot idle returns to normal after the repair.
Vehicle context

Affected brands in this MVP

Brand hubs help broaden internal linking now and can evolve into make-specific diagnostic notes later.

Aliases and common searches

English phrases tied to P0507

Useful when the driver knows the wording but not the exact DTC yet.

  • idle too high code
  • high idle control code
  • RPM higher than expected at idle
Related search intent

Queries this page can answer naturally

  • P0507 code meaning
  • what does P0507 mean
  • high idle code causes
  • P0507 rough idle
FAQ

Quick questions about P0507

Can a vacuum leak cause P0507?

Yes. Unmetered air is one of the most common reasons idle speed stays too high.

Can throttle-body cleaning trigger P0507?

Yes. If idle relearn is needed afterward, the code can appear even though nothing is physically broken.

Is P0507 serious?

Usually moderate rather than critical, but it should still be diagnosed rather than ignored.