Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSHYUNDAI2011ACCENT GLS, AUTOMATICREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROL SYSTEM DIAGNOSIS (2 OF 2)DTC P2097: POST CATALYST FUEL TRIM SYSTEM TOO RICHINSPECTION/REPAIRSYSTEM INSPECTION

2011 Hyundai Accent GLS, Automatic

System Inspection

2011 Hyundai Accent GLS, AutomaticSECTION System Inspection

Check clog on Exhaust gas system
1. Key "OFF".
2. Check clog on muffler or catalyst converter.
3. Is Exhaust gas system OK?
  YES
  1. Go to " 2 Intake air system check" procedure.
  NO
  1. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
Intake air system check
1. Check leakage on Intake air system
  - Check clog of air-cleaner.
  - Check deterioration or contamination on throttle body and gasket.
  - Check for contamination or sticking on the ISCA assembly.
2. Is there any problem?
  YES
  1. Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure
  NO
  1. Go to " 3 Fuel line pressure check" procedure.
Fuel line pressure check
1. Key "OFF".
2. Disconnect a fuel pump relay.
3. Engine start and wait until engine stop. and then key "OFF".
4. Connect a fuel pump relay.
5. Connect fuel pressure gauge using the correct adapter.
6. Start the engine and record fuel pressure.
  1. Specification : Approx. 3.5 kg/cm²
    
    Fig 1: Checking Fuel Line Pressure
    Courtesy of HYUNDAI MOTOR CO.
7. Is the fuel pressure normal?
  YES
  1. Go to "COMPONENT INSPECTION " procedure.
  NO
  1. Check clog or stuck of the valve in a fuel pressure regulator.
    Check the supply pressure of fuel pump.
    
    Repair as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.