Problem Reports
Lexus ES330
Report: Check Engine Light With Code P0171 and/or P0174
Lexus ES330 Problem
4 Reports
Model Years Affected: 2004, 2005, 2006
Verified
The Check Engine Light may illuminate with codes P0171 and/or P0174 due to a lean running engine. Symptoms may include: Hesitation on acceleration, lack of power, and poor fuel mileage. This is commonly caused by a dirty mass airflow sensor. Our technicians tell us the sensor may be cleaned using an approved cleaner but replacement is often required to correct this issue.
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