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Home >> Jeep >> 2024 >> Gladiator Nighthawk, Part Time T/Case Control, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 3.6L (GPEC 2A) - DTCS P2098 To P2116 >> DTC Troubleshooting >> P2098-Downstream Fuel Trim System 2 Lean >> Possible Causes
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Possible Causes

Possible Causes
EXHAUST SYSTEM LEAK
UPSTREAM O2 SENSOR WIRING ISSUE
UPSTREAM O2 SENSOR
DOWNSTREAM O2 SENSOR WIRING ISSUE
DOWNSTREAM O2 SENSOR
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .