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P0507 on Hyundai Sonata: Fix & DLC Location

Factory diagnostic troubleshooting wire for fault code P0507 (Idle Control System RPM Higher Than Expected - Diagnosis) specifically on the Hyundai Sonata (2020–2026, 2.5L 4-Cyl (191HP) / 2.5L Turbo (N Line 290HP) / 2.0L Hybrid (192HP)).

2020–2026
SonataSedan
Sensor Voltage Ref
0.1V – 5.0V Ref
Sonata SAE Mode $01
ECU Network Bus
500 kbps CAN-FD
ISO 15765-4 Compliant
Drivability Status
Drivable (Short Trip)
Medium urgency level
Est. DIY Time
45 – 90 Min
Basic hand tools
Check P0507 On Another Hyundai Model:

1. Symptoms of P0507 on Hyundai Sonata

When the Engine Control Module (ECM/PCM) on your Hyundai Sonata (2.5L 4-Cyl (191HP) / 2.5L Turbo (N Line 290HP) / 2.0L Hybrid (192HP)) logs fault code P0507, drivers commonly observe:

Engine idles at 1,000+ RPM in park/neutral on Hyundai Sonata (2.5L 4-Cyl (191HP) / 2.5L Turbo (N Line 290HP) / 2.0L Hybrid (192HP))
RPM surges or hunts at red lights on Hyundai Sonata (2.5L 4-Cyl (191HP) / 2.5L Turbo (N Line 290HP) / 2.0L Hybrid (192HP))
Check Engine Light illuminated on Hyundai Sonata (2.5L 4-Cyl (191HP) / 2.5L Turbo (N Line 290HP) / 2.0L Hybrid (192HP))
Hyundai Sonata OBD-II Port Location
The 16-pin diagnostic connector is located Under driver side steering column. Plug in your scan tool to verify freeze-frame sensor values.

2. Most Likely Causes on Hyundai Sonata

Historical warranty claims and technical repair bulletins for Hyundai Sonata point to the following failure distribution:

55%
Intake manifold vacuum leak (Hyundai OEM Part)
25%
Carbon buildup causing sticky electronic throttle body (Hyundai OEM Part)
12%
Uncalibrated idle air volume after battery disconnect (Hyundai OEM Part)
8%
Faulty PCV valve stuck open (Hyundai OEM Part)

3. Step-by-Step DIY Repair Guide for Hyundai Sonata

01
Check for Unmetered Vacuum Leaks

Spray brake cleaner around intake manifold gaskets; an RPM change reveals the leak location. on the Hyundai Sonata equipped with 2.5L 4-Cyl (191HP) / 2.5L Turbo (N Line 290HP) / 2.0L Hybrid (192HP).

02
Clean Throttle Body & Carbon Deposits

Gently clean carbon soot around throttle blade using throttle cleaner and microfiber towel. on the Hyundai Sonata equipped with 2.5L 4-Cyl (191HP) / 2.5L Turbo (N Line 290HP) / 2.0L Hybrid (192HP).

03
Perform Idle Air Volume Relearn Procedure

Follow vehicle-specific ignition key on/off timing sequence or use OBD scanner to reset baseline idle. on the Hyundai Sonata equipped with 2.5L 4-Cyl (191HP) / 2.5L Turbo (N Line 290HP) / 2.0L Hybrid (192HP).

Other Common Fault Codes on Hyundai Sonata

Frequently diagnosed powertrain, emissions, and sensor trouble codes logged on the Hyundai Sonata:

4. Hyundai Sonata P0507 FAQs

What causes code P0507 to trigger on a Hyundai Sonata?

On the Hyundai Sonata (2.5L 4-Cyl (191HP) / 2.5L Turbo (N Line 290HP) / 2.0L Hybrid (192HP)), P0507 is most frequently caused by Intake manifold vacuum leak or Carbon buildup causing sticky electronic throttle body.

Where is the OBD-II port located on my Hyundai Sonata?

On the Hyundai Sonata, the 16-pin DLC diagnostic connector is located Under driver side steering column. Plug in any standard OBD-II scanner with the ignition in the ON position to read freeze-frame parameters.

Can I safely drive my Hyundai Sonata with code P0507?

Driveable, but braking distance may increase slightly due to high engine idle. Given that P0507 carries a Medium severity rating, we advise avoiding heavy towing or aggressive throttle inputs until sensor readings are verified.