p0171 - ClubLexus - Lexus Forum Discussion

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check engine, code, fuel, hard, idle, improper, lean code, long, p0171, p0174, start, term, timing, trim, vsc

FINALLY SOLVED! P0171 and P0174 Codes!!!!

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HtownBlue on Jan 4, 2013

Apr 20, 2026 11:30 AM
by samplemons

49

548,410

RX - 2nd Gen (2004-2009)

P0171 P0174 2003 Es300

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1 2 3)

dpwct on Dec 7, 2024

Jan 29, 2025 03:46 PM
by Arsenii

40

2,977

ES - 1st to 6th Gen (1990-2018)

Code P0171

Broseph400 on May 28, 2023

May 28, 2023 07:46 PM
by Arsenii

1

2,132

ES - 1st to 6th Gen (1990-2018)

Help! 2009 RX350 Trouble code P0171&P0174

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1 2)

Jiang on Jul 26, 2022

Aug 10, 2022 12:25 PM
by spinellib

15

3,441

RX - 2nd Gen (2004-2009)

2008 ls460 p0171 p2195

BridgePrt on Feb 17, 2022

Mar 6, 2022 03:39 AM
by BridgePrt

5

6,953

LS - 4th Gen (2007-2017)

0171, 99, bank, emissions, error, es300, gs300, lean, lexus, p0171, pc, security, system, systemerror, troubleshooting

What component causes a p0171 system too lean bank one error code?

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1 2 3)

ovoxolexus on Mar 7, 2013

Mar 5, 2022 01:29 PM
by Hayk

36

58,966

ES - 1st to 6th Gen (1990-2018)

2005, check, gas, installing, lexus, p0171, pedal, plugs, replace, replacing, rsx, rx330, smell, spark, vsc

Check VSC after replacing sparkplugs

willfxp on Mar 6, 2011

Apr 30, 2021 08:53 AM
by Armadous1

11

18,932

IS - 2nd Gen (2006-2013)

01, 02, 171, 1999, 2000, 300, 400, 400po171, 99, bank, code, codep0171, codes, error, gs, lean, lexis, lexus, means, p0171, po0171, po171, rx, rx300, system

po171 code

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ravengotu on May 7, 2006

Jul 29, 2020 05:55 PM
by salimshah

77

96,324

RX - 1st Gen (1999-2003)

New (sort of) returning after a hiatus with ask for help.

Rice on Feb 5, 2020

Feb 20, 2020 04:28 AM
by Rice

8

775

IS - 2nd Gen (2006-2013)

GS400 CEL P0171: Lean Bank 1 ? HELP!

eazyGS400 on Jul 26, 2018

Jul 26, 2018 05:17 PM
by Briangs

1

3,648

GS - 2nd Gen (1998-2005)

300, codes, filter, grand, gs400, hissing, is300, leak, lexus, p0171, p0174, pcv, po171, prix, vacuum

P0171 finally fixed?!?!

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1 2 3)

fasted1953 on Feb 14, 2010

Jul 2, 2018 06:00 PM
by dwoods801

30

48,079

GS - 2nd Gen (1998-2005)

02, 2000, 300, 8942235010, bank, black, lexus, location, o2, p0171, picture, rx300, rxblack, sensor, smoke

Idling down & black smoke

rachel on Sep 1, 2007

May 6, 2018 04:15 PM
by murphysf

9

25,423

RX - 1st Gen (1999-2003)

P0171, MAF, and fuel trims

Pzindy on Mar 12, 2016

Sep 2, 2017 10:35 PM
by maxSteel

1

6,536

RX - 1st Gen (1999-2003)

0171, 1998, bank, code, gs300, lean, lexus, lien, p0171, p0300, p0301, p0303, p0305, p1133, rx300, system

code P0171 (system too lean-bank 1)?

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1 2)

ayroman on Apr 9, 2011

Jul 9, 2017 08:13 PM
by tattooeasy

26

59,950

ES - 1st to 6th Gen (1990-2018)

Check Engine (p0171, P0330) traction on

Es300guy2k on Dec 24, 2016

Dec 25, 2016 11:33 AM
by Es300guy2k

7

7,669

ES - 1st to 6th Gen (1990-2018)

0171, 1999, 300, 99, check, code, cold, engine, fault, lexus, light, lx, p0171, repair, rough, running, rx300, sc400

check engine light on, code P0171

rodrigo on Feb 2, 2009

Nov 14, 2016 01:53 PM
by 6.0PSD

13

31,428

RX - 1st Gen (1999-2003)

bank, drive, es300, fuel, is300, lexus, ls400, misfire, p0170, p0171, p0300, p0301, p0303, p0305, random, rx300

A real head-scratcher: P0170, P0300, P0301, P0303, P0305

vishesh on Apr 30, 2011

Oct 17, 2016 05:47 AM
by Duell

14

54,360

RX - 1st Gen (1999-2003)

cel, electrical, es300, misfiring, p0171

Rough Idle/Electrical/Misfiring P0171 CEL code 99 ES300

duracel831 on Aug 20, 2016

Sep 10, 2016 11:37 PM
by duracel831

9

2,568

ES - 1st to 6th Gen (1990-2018)

2000, 98, fuel, gs300, gs400, idle, injectors, issues, line, low, p0171, starting, symptoms, tap

98 GS300 Idling and Starting Issue, list of new parts

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Relex on Mar 12, 2014

Jul 28, 2015 10:40 AM
by chungmeow

74

16,245

GS - 2nd Gen (1998-2005)

Help! Engine Stutter, CEL and P0171 code

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1 2)

century29 on Jan 21, 2015

Apr 29, 2015 04:25 PM
by Mphidd

17

10,804

ES - 1st to 6th Gen (1990-2018)

0330, 2000, 300, 97, code, e300, es, es300, knock, lexas, lexus, p0171, p0330, po171, problems, sensor

1998 ES 300 displaying codes P0171 and P0330?

leeslexus on Jul 1, 2011

Jan 16, 2015 01:04 PM
by EPayne42

4

4,763

ES - 1st to 6th Gen (1990-2018)

bad, code, diagnosing, forum, iat, lexus, maf, maf sensor, p0171, resistance, sc, sensor

Diagnosing bad MAF (P0171)

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1 2)

vishesh on Jun 18, 2014

Dec 8, 2014 03:07 PM
by speltier

22

40,070

RX - 1st Gen (1999-2003)

error code p0171 coming up twice

topgun129 on Aug 28, 2014

Sep 1, 2014 09:08 AM
by Wht95scort

1

1,894

ES - 1st to 6th Gen (1990-2018)

Need some advice - not sure what to do next

Russelltw on Jun 21, 2014

Jun 22, 2014 06:13 PM
by clintbw

3

1,516

ES - 1st to 6th Gen (1990-2018)

2001, cel vsc trac vsc off, hesitation, is300, lexus, p0171, p0174

hesitates above 60% throttle and bad shifting

ls430vip on May 1, 2014

May 22, 2014 10:44 AM
by ls430vip

2

2,394

Maintenance

00, 0171, 2000, 300, caravan, code, dodge, forums, lexus, p0171, plugs, po171, rx, rx300, spark

P0171 2000 rx 300

irenek on Jan 20, 2012

Apr 18, 2014 05:08 AM
by BearsLexus

11

10,436

RX - 1st Gen (1999-2003)

1998, 2001, driven, gs300, hesitation, hours, is300, lean, lexus, misfiring, p0171, p0174, p0300, sc400, system, youtube

2001 Misfiring P0300, P0171, P0174

clintbw on Mar 15, 2014

Apr 1, 2014 07:38 AM
by clintbw

12

16,159

ES - 1st to 6th Gen (1990-2018)

body, image, lexus, location, p0171, perform, rx300, smoke, test, toyota, trottle

P0171 Smoke testing

Rummat81 on Oct 29, 2013

Mar 4, 2014 02:18 PM
by Rummat81

8

10,675

RX - 1st Gen (1999-2003)

01, 2000, 300, 400, code, engine, es, es300, gs, lexus, light, p0171, po171, stays, trac, track

P0171 code and TRAC OFF light

fju2112 on Jan 12, 2008

Nov 20, 2013 03:17 PM
by tomf

14

24,785

ES - 1st to 6th Gen (1990-2018)

P0171 and no power?

zualet on Oct 20, 2013

Oct 20, 2013 10:54 AM
by zualet

0

992

RX - 1st Gen (1999-2003)

Threads Tagged with p0171