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Nissan-Datsun
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2021
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Sentra SR
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Repair and Diagnosis
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Engine Performance
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System
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Engine Control System (DTC/Circuit Diagnosis) (2 Of 4)
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DTC/Circuit Diagnosis
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DTC P0171: Fuel Injection System Function
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DTC Description
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Possible Cause
July 1:
So it begins
. Don't worry, this is not in the correct legal jurisdiction!
Possible Cause
Intake air leakage
A/F sensor 1
Fuel injector
Exhaust gas leakage
Incorrect fuel pressure
Lack of fuel
Mass air flow sensor
Incorrect PCV hose connection