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 MANUALSKIA2010RONDO LX, 2.7 6REPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROL SYSTEM DIAGNOSIS (1 OF 3) - 2.7LDTC P0172: SYSTEM TOO RICH (BANK 1)GENERAL INFORMATIONDTC DETECTING CONDITION

2010 Kia Rondo LX, 2.7 6

General Information: DTC Detecting Condition

2010 Kia Rondo LX, 2.7 6SECTION DTC Detecting Condition

DTC DETECTING CONDITION CHART

Item	Detecting Condition	Possible Cause
DTC Strategy	Monitor the fuel trim value	Blocking of intake system Fuel leakage in injector Improper fuel pressure
Enable Conditions	Engine warm-up sufficiently Drive at a steady speed over 5 minutes (Vehicle speed ≤ 130km/h) 60°C (140°F) ≤ Engine coolant temperature ≤ 115°C (239°F) No disabling faults (DTCs related to HO2S, purge valve, catalyst)
Threshold value	Average of short term fuel trim < 1.2 and Average of long term fuel trim < 0.8
Diagnosis Time	Continuous
MIL On Condition	2 Driving Cycles

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.