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 MANUALSGENESIS2021GV80 2.5T ADVANCED, AWDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM DIAGNOSIS - 2.5L (6 OF 6)DTC P2178-00: SYSTEM TOO RICH OFF IDLE BANK 1DTC INFORMATION AND INSPECTIONDTC DESCRIPTION
2021 Genesis GV80 2.5T Advanced, AWD
DTC Description
2021 Genesis GV80 2.5T Advanced, AWDSECTION DTC Description
The ECM monitors the fuel trim values at idle during predetermined driving enable conditions. If the average of short term fuel trim is below the determined limit over a certain period of time, ECM sets a DTC P217800.
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.