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Home >> Jeep >> 2019 >> Renegade High Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1379 (1.3L - DTCS P0107 To P025C) >> DTC Troubleshooting >> P0171-Fuel System 1/1 Lean >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2020 Jeep Renegade. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
FUEL SYSTEM ISSUE CAUSING LOW FUEL PRESSURE OR VOLUME
O2 SENSOR WIRING ISSUE
O2 SENSOR HEATER ISSUE
O2 SENSOR
TMAP SENSOR
EXHAUST SYSTEM LEAK
LEAK IN THE PURGE FLOW SYSTEM
EGR VALVE INTERNAL LEAK
ENGINE MECHANICAL - VACUUM LEAK
POWERTRAIN CONTROL MODULE (PCM)

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