Hyundai Hyundai/Kia Vehicles (Multiple Models) Error Code P3009

Hyundai OBD-II Critical Fuel and Air Metering

Model: Hyundai/Kia Vehicles (Multiple Models) | Code: P3009

Applicable Systems
Elantra Sonata Tucson Santa Fe

Symptoms

Gasoline Direct Injection fuel injector circuit fault; cylinder may misfire or run lean.

Possible Causes

  • GDI injector internal coil failure
  • Injector harness chafing or short to ground
  • ECU injector driver circuit fault

Troubleshooting Steps

  1. Step 1: Perform injector balance test
    Identify faulty cylinder
  2. Step 2: Check injector resistance and waveform
    Resistance 9-13 ohm, waveform normal
  3. Step 3: Replace faulty GDI injector
    Injector replaced, fuel trim normalized

How to Reset

Clear fuel trim adaptations and perform injector relearn.

Related Hyundai Fault Codes

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Source: SAE J2012 Standard, OBD-II Service Manuals

Category: OBD-II

Published: 2026-10-16