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 MANUALSHYUNDAI2013GENESIS COUPE 2.0T PREMIUMREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 43 (ENGINE CONTROL SYSTEM (DTC TROUBLESHOOTING) (2 OF 3) - 2.0L)DTC P0455: EVAPORATIVE EMISSION SYSTEM-LEAK DETECTED (LARGE LEAK)MONITOR DTC STATUS
2013 Hyundai Genesis Coupe 2.0T Premium
Monitor DTC Status
2013 Hyundai Genesis Coupe 2.0T PremiumSECTION Monitor DTC Status
WARNING: This page is about a different car, the 2012 Hyundai Genesis Coupe. However, it is still accessible from the selected car via links, so may be relevant.
- Start engine to normal operating temperatureNOTE: Evaporative Emissions Systems (EVAP) Leak Tests can be run by the Scantool. The tests are automated and provide either a pass-fail result or directions to check for DTCs.
- Install scan tool and clear DTC
- Perform "EVAP. LEAKAGE TEST" mode referring to enable conditions as follows:NOTE: EVAP. Leakage Test enable conditions
- following conditions: must be fulfilled to start the test.
- Engine warm up at Idle Status
- No relevant DTC
- Fuel level is below 80%
- following conditions: must be fulfilled to start the test.
- Is DTC P0442 set again?
YES
- Go to the next Inspection procedure.
NO
- Fault is intermittent, caused by poor contact in the sensor's and/or ECM's connector, or was repaired and ECM memory was not cleared. Thoroughly check connectors for looseness, poor connection, bending, corrosion, contamination, deterioration, or damage. Repair or replace as necessary and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
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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.