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P0506

Idle Speed Too Low

Medium — fix within daysDrive with caution

Severity: Fix within days. Drive with caution and watch for new symptoms.

What P0506 means

The engine is idling slower than the computer wants, which usually means not enough air is getting in at idle.

Common causes

How to fix it

Clean the throttle body and idle passages, check for vacuum leaks, and test the idle air control valve.

Can I drive with P0506?

The engine may stall at stops. Keep your foot ready on the gas and get it checked soon.

Related codes

Questions, answered

Is it safe to drive with code P0506?

You can drive short distances carefully; watch for worsening symptoms. The engine may stall at stops. Keep your foot ready on the gas and get it checked soon.

What causes code P0506?

The most common causes are: Dirty throttle body; Failed idle air control valve; Vacuum leak; Carbon buildup in the idle passages. A scan tool and a visual check of the parts above is where a technician starts.

How do I fix code P0506?

Clean the throttle body and idle passages, check for vacuum leaks, and test the idle air control valve.

Not repair advice. This page gives general information about code P0506 only. Cars differ by make, model and year — confirm the fault with a scan tool and have the repair done by a qualified technician.

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