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P0171 on TOYOTA CAMRY

Severity
Medium
NHTSA Reports
4
Most Affected
2007, 2018, 2019

What P0171 Means on Your TOYOTA CAMRY

Real TOYOTA CAMRY Owner Reports (Source: NHTSA Complaints Database)

"We where driving to the store and on the way the check engine came on, so we pulled into the local autozone and they ran a scan for fault codes."

— 2007 TOYOTA CAMRY owner • SERVICE BRAKES • Filed 07/02/2014

"The first indication was the crl came on with codes p0171 and then p0174. when pressing the brake pedal down, there is a hissing noise and the brake pedal would basically go all the way to the floor. it sounds as if this has happened quite a bit with this model and should be looked into."

— 2007 TOYOTA CAMRY owner • SERVICE BRAKES • Filed 10/20/2012

"Check engine light came on and the performance of the vehicle is bad. bad idle, weak engine, just the car is not performing properly. i used the scanner to see the code and i had more than one . p0171 p0505 p117b p0441 p0455 . fuel/air mixture is lean ."

— 2018 TOYOTA CAMRY owner • ENGINE,FUEL/PROPULSION SYSTEM • Filed 06/20/2020

"Two weeks prior, car began rough idling at stop-lights, intermittently. Then one morning, after refueling, the car sputtered and failed to start. The MIL light came on, with display warnings: “Charging System Malfunction” and Steering Power Low”."

— 2019 TOYOTA CAMRY owner • FUEL/PROPULSION SYSTEM • Filed 04/17/2025

Data from NHTSA Vehicle Complaints Database. All reports are filed by vehicle owners directly with the U.S. Department of Transportation.

Common Causes of P0171 on TOYOTA CAMRY

50%
25%
25%

Percentages based on NHTSA complaint component analysis for this vehicle.

Complaint Trend by Year

2007
2
2018
1
2019
1

What To Do Next

  1. 1
    Check for recalls on YOUR VIN

    Go to nhtsa.gov/recalls and enter your VIN. Free repairs if your vehicle is covered.

  2. 2
    Get a proper diagnosis

    A code alone doesn't tell you the exact failed part. A diagnostic at a shop ($50-$150) pinpoints the root cause before you spend money on parts.

  3. 3
    Compare repair quotes

    Get 2-3 quotes. Dealer vs independent shop prices often differ 30-50% for the same repair.

P0171 on Other Vehicles

Data sourced from the National Highway Traffic Safety Administration (U.S. Department of Transportation) and the SAE J2012 OBD-II standard. Code definitions follow the SAE J2012 / ISO 15031-6 standard. Owner reports are filed directly with NHTSA by vehicle owners. This information is provided for educational purposes only and should not replace professional automotive diagnosis. Always consult a qualified mechanic for vehicle repair decisions.

Last updated: March 2026