P0507 on Dodge: How to Diagnose & Fix
Idle Air Control System RPM Higher Than Expected
1 Dodge model · 1 documented issue · $50-$600 repair
P0507 on Dodge by model: symptoms, diagnosis and fix
Darts across all engine options experience random stalling at idle, particularly when coming to a stop or sitting at traffic lights. The issue stems from a combination of electronic throttle body carbon buildup and PCM software calibration problems. The 2.0L and 2.4L engines are most commonly affected. Several TSBs have been issued addressing idle quality.
Common Symptoms
- Engine stalls when coming to a stop
- Rough or fluctuating idle RPM
- Engine dies at traffic lights or in drive-through
- Momentary loss of power steering when engine stalls
- Check engine light may or may not illuminate
How to Fix
Start with a throttle body cleaning using CRC throttle body cleaner — remove the intake hose and clean the butterfly valve and bore. Then visit a dealer for the latest PCM flash update (TSB 18-034-14 REV.B or newer). If stalling persists after both steps, replace the electronic throttle body assembly (Mopar 04891585AC for 2.4L). Perform idle relearn after any throttle body service.
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Sources for this issue (1)
P0507 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does P0507 mean on a Dodge?
P0507 stands for "Idle Air Control System RPM Higher Than Expected." This code means the engine is idling faster than the computer's target idle speed, typically by a set margin such as 200 RPM above commanded. The engine control module manages idle by metering a small amount of air around the throttle plate (via an idle air control valve or electronic throttle), and when it can't bring the RPM down to target it flags this code. The most common real cause is unmetered air sneaking into the intake — a vacuum leak — that the computer can't compensate for. It generally indicates extra air entering the engine or a problem with the idle/throttle control system. On Dodge it is documented across 1 model: Dart.
What are the most common causes of P0507?
The most common causes of P0507 are: Vacuum or intake air leak (hoses, gaskets, intake boot), Dirty or sticking throttle body or throttle plate, Faulty or stuck idle air control valve, Leaking intake manifold or throttle body gasket, Stuck-open PCV valve or cracked PCV hose, Dirty mass airflow sensor giving false readings, Failing throttle position sensor, Leaking brake booster or its vacuum hose. The specific cause varies by vehicle.
How much does it cost to fix P0507 on a Dodge?
Published repair estimates on Dodge range from $50 to $600 depending on the model and root cause. If an issue mentions a recall or campaign, check your VIN with the manufacturer or NHTSA and confirm eligibility and coverage with a dealer.
Looking for P0507 on a different make?
View P0507 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.