FixVault

Home › Infiniti › 2021 › Q60 Pure, AWD › Repair and Diagnosis › Engine Performance › System › Engine Control System (DTCS) (2 Of 7) › Engine (ECM) › DTC P0171: Fuel Injection System Function › DTC Description › Possible Cause

Possible Cause

Intake air leaks
A/F sensor 1 (bank 1)
Fuel injector
Exhaust gas leaks
Incorrect fuel pressure
Lack of fuel
Mass air flow sensor
Incorrect PCV hose connection