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Home >> Jeep >> 2021 >> Gladiator Mojave, Part Time T/Case Control, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 3.6L (GPEC 2A) - DTCS P1524 To P2097 >> DTC Troubleshooting >> P1E09-Closed Loop Fueling Not Achieved - Bank 1 Downstream >> Possible Causes

Possible Causes

POSSIBLE CAUSES
FUEL DELIVERY SYSTEM
MAP SENSOR, WIRING, OR CONNECTORS
DOWNSTREAM O2 SENSOR, WIRING, OR CONNECTORS
ENGINE MECHANICAL SYSTEM
POWERTRAIN CONTROL MODULE (PCM)

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

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