Top Makes and Models with DTC P0171

Code P0171—System Too Lean (Bank 1)—requires prompt attention to prevent unsafe driving conditions and the risk of engine and catalytic converter damage. Ford, Chevrolet, Toyota, Nissan, and Audi models are the most susceptible. However, code P0171 problems can also occur in other vehicles.

David Goldberg
July 16, 2024

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Top 10 Most Affected Makes

Rank	Make	Low	Moderate	High
1	Ford	Edge, Fusion, Explorer, F-350, Fiesta	Focus, Ranger, Escape, F-250	Expedition, F-150, Mustang
2	Chevrolet	Avalanche, Camaro, Suburban, Silverado 2500, Trailblazer	Tahoe, Colorado, Traverse	Impala, Malibu, Silverado 1500, Sonic, Cobalt, Cruze, Equinox
3	Toyota	N/A	Tacoma, Highlander, Prius, Tundra	Camry, RAV4, Sienna
4	Nissan	Versa, Xterra, Titan	Maxima, Sentra, Frontier, Murano, Pathfinder, Rogue	Altima
5	Audi	N/A	N/A	A4
6	GMC	Terrain	Yukon, Envoy, Acadia	Sierra
7	Honda	N/A	Pilot	N/A
8	Subaru	Legacy, Impreza	Outback, Forester	N/A
9	Pontiac	G6	Grand Prix	N/A
10	Volkswagen	CC, Tiguan	Passat, Jetta	N/A

Code P0171-related issues impact vehicles from a wide array of manufacturers—SUVs, trucks, and passenger cars are all vulnerable. FIXD sensor data reveal that vehicles most likely to experience a P0171 code are:

Below is an expanded look at how a P0171 code impacts numerous makes and models. This breakdown covers occurrence rates by model year (2000-2023) and separates the frequency into low, moderate, or high levels. The worst of the worst are the nine vehicles listed above.

What is the P0171 Code?

Three mechanics scanning a vehicle — *This AI-generated image may not accurately represent all aspects of the intended subjects whether a person or object.*

Code P0171: System Too Lean (Bank 1) signals that Engine Bank 1 has an imbalance in the air-fuel mix due to too much oxygen or insufficient fuel. It’s a problem that should be corrected as soon as possible to prevent unsafe driving conditions due to stalling and engine hesitation. Continued driving with code P0171 can lead to engine and catalytic converter damage.

Read the complete article on P0171 Engine Code | System Too Lean (Bank 1) to discover the trouble areas to consider. This resource also offers tips on diagnosing the problem and what a DIYer can do to tackle a P0171 code independently (and when not to).

Top Models for P0171 Codes

Here’s a look at the makes and models most likely to have P0171 codes, according to FIXD sensor data. The absence of a model year ranking indicates no P0171 code was detected among the analyzed years, insufficient data, or the model wasn’t in production.

Acura

Acura P0171 Occurrence

Make + Model		Low	Moderate	High
Acura MDX		2001, 2003, 2005, 2007. 2008, 2009, 2013, 2016, 2017, 2019	2002, 2004, 2006, 2011, 2012, 2014, 2015	2010

Audi

Audi P0171 Occurrence

Make + Model		Low	Moderate	High
Audi A4		2001, 2002, 2003, 2004, 2009, 2010, 2012, 2014, 2015, 2016	2005, 2006, 2007	2008

BMW

BMW P0171 Occurrence

Make + Model	Low	Moderate	High
BMW 325i	2001, 2003, 2004	2002	N/A
BMW X5	2001, 2004, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019	2005	2002, 2003

Buick

Buick P0171 Occurrence

Make + Model	Low	Moderate	High
Buick Enclave	2008, 2013, 2014, 2015, 2016, 2017, 2018	N/A	2012
Buick LaCrosse	2005, 2007, 2009, 2011, 2016, 2017	2006, 2010, 2012, 2013, 2014, 2015	2008
Buick LeSabre	2001, 2002, 2003, 2004, 2005	N/A	2000

Cadillac

Cadillac P0171 Occurrence

Make + Model	Low	Moderate	High
Cadillac Escalade	2000, 2002, 2003, 2004, 2005, 2006, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017	N/A	2007
Cadillac CTS	2006, 2010, 2011, 2015, 2016	2003, 2012, 2013	2014
Cadillac DeVille	2000, 2001, 2002, 2003,	2005	2004
Cadillac SRX	2005, 2007, 2009, 2010, 2011, 2014, 2016	2004, 2006, 2012, 2013	2008, 2015
Cadillac STS	2008, 2010	2006, 2007, 2009	2005

Chevrolet

Chevrolet P0171 Occurrence

Make + Model	Low	Moderate	High
Chevrolet Avalanche	2002, 2004, 2005, 2006, 2009, 2010, 2011, 2012, 2013	2003, 2008	2007
Chevrolet Camaro	2000, 2001, 2002, 2011, 2018, 2019, 2020	2010, 2013, 2014, 2016, 2017	2012, 2015
Chevrolet Cobalt	2008, 2010	2007, 2009	2005, 2006
Chevrolet Colorado	2009, 2010, 2011, 2012, 2017, 2018, 2019, 2020, 2021, 2022	2004, 2005, 2015, 2016	2006, 2007, 2008
Chevrolet Cruze	2010, 2016, 2017, 2018, 2019	2015	2011, 2012, 2013, 2014
Chevrolet Equinox	2005, 2007, 2008, 2009, 2010, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022	2006, 2011, 2013	2012
Chevrolet Impala	2000, 2001, 2002, 2005, 2008, 2009, 2010, 2011, 2012, 2014, 2016, 2017, 2018, 2019, 2020, 2021	2003, 2004, 2007, 2015	2006, 2013
Chevrolet Malibu	2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2016, 2017, 2018, 2019, 2020, 2021	2008, 2009, 2010, 2011, 2012, 2014, 2015	2013
Chevrolet Silverado 1500	2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021	2000, 2001, 2002, 2005, 2006, 2007, 2008	2003, 2004
Chevrolet Silverado 2500	2001, 2002, 2003, 2004	N/A	2000
Chevrolet Sonic	2016, 2018, 2019, 2020	2012, 2014, 2015, 2017	2013
Chevrolet Suburban	2000, 2001, 2002, 2006, 2007, 2008, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022	2003, 2005, 2009	2004
Chevrolet Tahoe	2000, 2001, 2002, 2003, 2005, 2006, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2018	2004	2007
Chevrolet Trailblazer	2002, 2003, 2004, 2005, 2006, 2008, 2021	2022	N/A
Chevrolet Traverse	2011, 2013, 2016, 2018, 2019, 2021	2012, 2015, 2017	2014

Chrysler

Chrysler P0171 Occurrence

Make + Model	Low	Moderate	High
Chrysler Town & Country	2000, 2001, 2002, 2003, 2005, 2006, 2007, 2009, 2012, 2013, 2014, 2016	2008, 2010	N/A

Dodge

Dodge P0171 Occurrence

Make + Model	Low	Moderate	High
Dodge Charger	2009, 2017, 2018, 2020	2011, 2012, 2013, 2014, 2016, 2019	2006, 2007, 2008, 2010, 2015
Dodge Dakota	2001, 2002, 2004, 2006, 2007, 2008, 2009, 2010, 2011	2000, 2003, 2005	N/A
Dodge Durango	2000, 2001, 2002, 2005, 2006, 2007, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2020, 2021	2003, 2018	2004
Dodge Ram 1500^	2000, 2001, 2010	2003, 2005, 2006, 2007, 2009	2002, 2004, 2008

Ford

Ford P0171 Occurrence

Make + Model	Low	Moderate	High
Ford Edge	2011, 2014, 2015, 2016, 2017, 2018, 2020	2009, 2012, 2013	2007, 2008, 2010
Ford Escape	2004, 2007, 2010, 2015, 2016, 2018, 2019	2001, 2002, 2003, 2005, 2006, 2011, 2012, 2013, 2014	2008, 2009
Ford Expedition	2000, 2001, 2002, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2018, 2019, 2021	2004	2003
Ford F-150	2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022	2000, 2004, 2005, 2006	2001, 2002, 2003
Ford F-250	2007, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017	2000, 2002, 2008	2001, 2003, 2004, 2005, 2006
Ford F-350	2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2019, 2020	2000, 2001, 2003, 2005	2002, 2004, 2006
Ford Fiesta	2005, 2011, 2012, 2015, 2016, 2018	2014	2013
Ford Focus	2000, 2004, 2008, 2011, 2014, 2015, 2016, 2017, 2018	2001, 2002, 2006, 2007, 2009, 2010, 2012, 2013	2003, 2005
Ford Fusion	2005, 2007, 2008, 2009, 2011, 2012, 2013, 2014, 2015, 2017, 2018, 2019, 2020	2006, 2016	2010
Ford Mustang	2000, 2001, 2003, 2004, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021	2002, 2006	2005, 2007
Ford Ranger	2007, 2008, 2009, 2010, 2011, 2018, 2020	2005, 2006	2000, 2001, 2002, 2003, 2004
Ford Taurus	2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2018	2000, 2001, 2002, 2003, 2004, 2006	2005

GMC

GMC P0171 Occurrence

Make + Model	Low	Moderate	High
GMC Acadia	2009, 2013, 2014, 2015, 2017, 2018, 2019, 2020, 2021	2012, 2016	2007, 2008
GMC Envoy	2003, 2004, 2005, 2008, 2009	2002, 2007	2006
GMC Sierra	2000, 2001, 2002, 2007, 2010, 2012, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022	2005, 2006, 2009, 2011, 2013	2003, 2004, 2008
GMC Terrain	2010, 2013, 2014, 2017, 2018, 2019, 2020, 2021, 2022	2012, 2015, 2016	2011
GMC Yukon	2000, 2001, 2002, 2006, 2008, 2009, 2010, 2011, 2012, 2013, 2015, 2017, 2018, 2019	2003, 2005	2004, 2007

Honda

Honda P0171 Occurrence

Make + Model	Low	Moderate	High
Honda Pilot	2011, 2013, 2016, 2018, 2019, 2020, 2021	2012, 2015, 2017	2014

Infiniti

Infiniti P0171 Occurrence

Make + Model	Low	Moderate	High
Infiniti G35	2003	2004, 2005, 2006, 2007	2008

Jeep

Jeep P0171 Occurrence

Make + Model	Low	Moderate	High
Jeep Grand Cherokee	2001, 2002, 2003, 2005, 2008, 2009, 2010, 2013, 2014, 2015, 2016, 2017, 2018, 2019	2000, 2004, 2006, 2007	2011, 2012
Jeep Liberty	2002, 2005, 2006, 2007, 2008, 2009, 2010, 2011	2003	2004
Jeep Wrangler	2001, 2002, 2003, 2004, 2005, 2006, 2010, 2011, 2013, 2015, 2016, 2017, 2019, 2020, 2021	2000, 2007, 2012, 2014	2008, 2009, 2018

Kia

Kia P0171 Occurrence

Make + Model	Low	Moderate	High
Kia Rondo	N/A	2008, 2009	2007

Lexus

Lexus P0171 Occurrence

Make + Model	Low	Moderate	High
Lexus IS 250	2008, 2009, 2010, 2011, 2012, 2014, 2015	2007	2006
Lexus RX 300	2001, 2002	N/A	N/A

Lincoln

Lincoln P0171 Occurrence

Make + Model	Low	Moderate	High
Lincoln Navigator	2000, 2001, 2002, 2006, 2008, 2011, 2012, 2013, 2020	2003, 2005, 2007	2004

Mercury

Mercury P0171 Occurrence

Make + Model	Low	Moderate	High
Mercury Mountaineer	2001, 2002, 2003, 2007, 2010	2000, 2004, 2005, 2008	2006

Nissan

Nissan P0171 Occurrence

Make + Model	Low	Moderate	High
Nissan Altima	2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021	2000, 2001, 2002, 2005, 2006, 2007, 2008	2003, 2004
Nissan Frontier	2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009, 2010, 2013, 2014, 2015, 2016, 2017, 2018, 2019	2007, 2011, 2012	2008
Nissan Maxima	2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2013, 2016, 2017, 2018	2005, 2009, 2010, 2011	2012, 2014
Nissan Murano	2003, 2004, 2005, 2006, 2007, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018	2010	2009
Nissan Pathfinder	2001, 2002, 2003, 2004, 2005, 2006, 2007, 2010, 2012, 2015, 2016, 2017, 2018, 2019, 2020	2008, 2009, 2013, 2014	2011
Nissan Rogue	2008, 2009, 2010, 2011, 2015, 2016, 2017, 2018, 2019, 2021	2014	2012, 2013
Nissan Sentra	2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2010, 2011, 2013, 2015, 2016, 2018, 2019, 2020	2008, 2009, 2014, 2017	2012
Nissan Titan	2005, 2007, 2008, 2009, 2010, 2012, 2017, 2018	2004, 2006	N/A
Nissan Versa	2011, 2013, 2014, 2015, 2016, 2018, 2019, 2020	2007, 2009, 2012	2008, 2010, 2017
Nissan Xterra	2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2010, 2011, 2012, 2013, 2014, 2015	2009	2008

Pontiac

Pontiac P0171 Occurrence

Make + Model	Low	Moderate	High
Pontiac G6	2005, 2009, 2010	2006	2007, 2008
Pontiac Grand Prix	2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008	N/A	2006

Ram

Ram P0171 Occurrence

Make + Model	Low	Moderate	High
Ram 1500^	2017, 2018, 2020, 2021, 2022	2011, 2013, 2016, 2019	2012, 2014, 2015

Scion

Scion P0171 Occurrence

Make + Model	Low	Moderate	High
Scion tC	2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016	2005, 2006, 2008	2007

Subaru

Subaru P0171 Occurrence

Make + Model	Low	Moderate	High
Subaru Forester	2001, 2002, 2003, 2004, 2005, 2008, 2009, 2012, 2013, 2016, 2017, 2018	2006, 2010, 2014, 2019	2007, 2011, 2015
Subaru Impreza	2000, 2001, 2014, 2015, 2017, 2018	2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011, 2012, 2013, 2016	2002, 2008
Subaru Legacy	2000, 2001, 2002, 2003, 2004, 2009, 2011, 2012, 2014, 2015, 2016, 2017, 2018	2006, 2007, 2008, 2010, 2013	2005
Subaru Outback	2016, 2018, 2021, 2023	2017, 2020, 2022	2019

Toyota

Toyota P0171 Occurrence

Make + Model	Low	Moderate	High
Toyota 4Runner	2003, 2006, 2007, 2008, 2011, 2013, 2015, 2016, 2017, 2019, 2021, 2022	2001, 2002, 2004	2000, 2005
Toyota Avalon	2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2014, 2015, 2016, 2018, 2019	2001, 2013	2000
Toyota Camry	2001, 2010, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022	2000, 2005, 2006, 2007, 2008, 2009, 2011	2002, 2003, 2004
Toyota Corolla	2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2023	2000, 2001, 2002, 2003, 2004, 2008	2005, 2006, 2007
Toyota Highlander	2004, 2007, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2019, 2020, 2021	2001, 2002, 2005, 2006, 2008, 2017, 2018	2003
Toyota Prius	2002, 2003, 2004, 2006, 2012, 2013, 2016, 2017, 2018	2001, 2005, 2008, 2009, 2011, 2014, 2015	2007, 2010
Toyota RAV4	2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022	2007, 2008	2010
Toyota Sequoia	2001, 2002, 2003, 2004, 2007, 2008, 2010, 2012, 2013, 2014, 2015, 2016	N/A	2005, 2006
Toyota Sienna	2000, 2001, 2002, 2003, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022	2004, 2005, 2008, 2009	2006, 2007
Toyota Tacoma	2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2022	2000, 2002, 2003, 2004, 2006	2001, 2005
Toyota Tundra	2002, 2003, 2004, 2007, 2009, 2010, 2011, 2014, 2016, 2017, 2018, 2020, 2021, 2022	2001, 2012, 2013, 2015	2000, 2005, 2006, 2008, 2019

Volkswagen

Volkswagen P0171 Occurrence

Make + Model	Low	Moderate	High
Volkswagen CC	2013	N/A	2009
Volkswagen Jetta	2000, 2001, 2009, 2011, 2012, 2013, 2018	2002, 2003, 2004, 2006, 2007	2005, 2008
Volkswagen Passat	2000, 2001, 2009, 2011, 2013, 2015, 2016, 2018, 2020	2002, 2003, 2004, 2005, 2006	2007, 2008
Volkswagen Tiguan	2010, 2018, 2019, 2021, 2022	N/A	2009

^ Beginning with the 2010 model year, Ram was spun off from Dodge and became a separate brand. Ram-branded trucks are often referred to as Dodges, although this is technically not correct

Source:

Data was collected from installed FIXD sensors in vehicles from the 2000-2023 model years.

David Goldberg

Dave Goldberg is an automotive journalist and lifelong car fanatic. He writes for numerous enthusiast and business outlets and is an ongoing contributor to HotCars.com, one of the most popular car culture websites. When he’s not writing or driving, Dave is either under a hood or asleep. His credentials include a BA in Journalism from The George Washington University.

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