rich - ClubLexus - Lexus Forum Discussion

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Running rich, possible pinging and engine vibration

dannode36 on Mar 6, 2025

Mar 8, 2025 09:22 AM
by CLLEXUSS

3

360

LS - 1st and 2nd Gen (1990-2000)

car, cylinder, damage, gs400, lexus, like, loose, oil, permanent, plug, plugs, rich, sound, spark, tune

...HOLY crap! Loose spark plugs!

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1 2)

Rock-a-Lex on Sep 15, 2008

Feb 26, 2023 09:46 AM
by Rock-a-Lex

18

54,710

Performance

Gas in Engine Oil (2006 IS250)

daan3757 on Apr 29, 2018

Dec 31, 2022 12:06 AM
by lexo98

14

7,370

IS - 2nd Gen (2006-2013)

air intake, maf sensor, misfire, rich, sc400

Need help dont know why my sc400 misfires

BenjaminSC on Apr 5, 2022

Apr 6, 2022 05:30 AM
by Och

1

610

SC - 1st Gen (1992-2000)

idle, oxygen sensor, p0172, rich, rx400h

RX400H - P0172 & P0175 - System Too Rich

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1 2)

GrantOli on Mar 3, 2021

Mar 10, 2021 08:30 AM
by matts6887

16

7,446

RX - 2nd Gen (2004-2009)

1jz, 2jzgte, afr, bogging, bogs, cold, hook, lean, lexus, o2, rich, sensor, start, wideband, wot

1jz bogs while in boost!

nismo2trd on Feb 4, 2008

Nov 5, 2019 11:40 PM
by Kamronman

13

5,172

SC - 1st Gen (1992-2000)

8966124310, car, driving, eclipse, fuel, gas, laser, lexus, ls400, mixture, plymouth, ranger, raw, rich, smell

Car is getting way too much fuel. I'm stumped

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1 2)

Supra4100 on Nov 4, 2003

Sep 20, 2018 10:18 PM
by Supra4100

19

10,455

SC - 1st Gen (1992-2000)

1995, 1999, 400, 95, burning, catalitic, catalytic, converter, es, lexus, location, ls400, problems, rich, sedan

Advice on Lexus LS400 Catalytic Converter

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1 2)

engelber on Oct 16, 2010

Feb 8, 2018 10:30 AM
by oldskewel

16

26,866

LS - 1st and 2nd Gen (1990-2000)

400, 94, 98, back, blown, engine, exhaust, gas, gasket, head, hissing, lexus, ls, rich, sc400, smell, smoke, supra, white

White smoke out of exhaust, not what you think

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1 2 3)

nasc300 on Mar 12, 2006

Oct 25, 2017 12:38 PM
by Craigls400

37

56,435

SC - 1st Gen (1992-2000)

Na-T running crazy rich, help

Lukas92 on Jul 23, 2017

Jul 25, 2017 05:41 PM
by 95sc300NaT

3

2,847

SC - 1st Gen (1992-2000)

Sc400 missfire and rich conditions.

Sc4kid on Jun 19, 2017

Jun 23, 2017 05:52 AM
by Returd

3

3,127

SC - 1st Gen (1992-2000)

compression, es300, head gasket, po300, rich

2002 ES300 190,000 miles head gasket diagnosis help

midwestmx on Sep 4, 2016

Sep 8, 2016 03:07 PM
by midwestmx

8

3,399

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

Notorious 1j running rich and idle issues. plz help!!!!!!!!!!!!!!!!!!!!!

Ollie7354 on Mar 13, 2016

Mar 22, 2016 03:29 AM
by SCFactory

7

6,597

SC - 1st Gen (1992-2000)

1992, 24, 92, catalytic, code, converter, ecu, issues, lexus, maf, resetting, rich, runing, running, sc400

my sc400 is running RICH and would LIKE some help please

philliptie on May 4, 2010

Jun 15, 2015 11:20 AM
by Biddles

11

13,801

SC - 1st Gen (1992-2000)

car, cold, ecu, ecu problem, engine, fuel, lexus, maf sensor, makes, rich, smells, smok, smoke, smokes, white, white smoke

ECU Problem? White Smoke, Running Extremely Rich

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1 2)

sc-driver on Mar 8, 2009

Feb 12, 2015 09:12 AM
by Anion

22

27,105

SC - 1st Gen (1992-2000)

1996, 94, capacitor, catalytic, cel, converter, ecu, hollowing, lexus, loss, ls400, power, rich, running, runs

94 LS400 running rich. Need some advice!

cpofwacotx on May 21, 2013

Sep 30, 2014 05:26 PM
by RA40

6

9,661

LS - 1st and 2nd Gen (1990-2000)

1995, bad, bypass, bypassing, check, cost, ecu, fuel, hoe, intermittent, jump, lexus, pump, rich, sc400

Fuel Pump & Fuel Pump ECU Issues SC400

Lexus082 on Jul 3, 2012

Jul 8, 2014 02:33 PM
by Ali SC3

5

27,801

SC - 1st Gen (1992-2000)

Boost & Fuel Cut Defenders - Educate me?

deputy865 on Mar 25, 2014

Mar 25, 2014 02:24 PM
by deputy865

7

6,441

SC - 1st Gen (1992-2000)

03, 2nd, 300, cover, generation, gs, gs300, lexus, replace, rich, running, smog, solenoids, valve, vvti

GS300 Running a little rich - Failing Smog!

VIP161 on Mar 20, 2014

Mar 21, 2014 08:43 PM
by VIP161

3

2,817

Performance

armor, clublexus, conditioner, de, leather, lexol, lexus, meguiars, rich, seats, slick, spray

What kind of leather cleaner and conditioner do you use?

aWorkOfArt on Dec 28, 2013

Jan 10, 2014 07:56 AM
by rustyd

14

6,229

Automotive Care & Detailing

1jz, bad, capacitor, capacitors, car, check, ecu, maf, nasioc, problems, rich, running, runs, symptoms, vvti

1JZ Running Rich: Bad ECU Capacitor?

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1 2 3)

jintei on Aug 28, 2013

Sep 11, 2013 02:44 PM
by jintei

31

17,603

SC - 1st Gen (1992-2000)

93, apexi, blitz, boost, custom, gs300, hks, rich

Help No Boost very rich 93 Gs300

hokiller on Aug 31, 2013

Aug 31, 2013 04:13 PM
by hokiller

0

1,136

GS - 1st Gen (1993-1997)

1998, 400, catalytic, converter, fix, fuel, gs, gs400, hold, lexus, line, p0172, rich, runs, turbo, vacuum

1998 Lexus GS400 - P0172 - Runs Rich

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1 2 3 4 5)

ThomasGS4 on Jun 19, 2013

Jul 24, 2013 05:01 PM
by GS4_Fiend

74

25,717

Maintenance

CA

BF Goodrich COMP2 Tires 19"

Dranom on May 22, 2013

Jun 28, 2013 09:50 AM
by Dranom

6

1,117

Wheels and Tires Classifieds

Na-t tt ecu single turbo a/f's

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1 2)

sj408 on Jun 17, 2013

Jun 26, 2013 09:14 AM
by Ali SC3

15

2,060

SC - 1st Gen (1992-2000)

Running Too Rich.. UCF21

xtremex626 on Jun 1, 2013

Jun 1, 2013 09:06 PM
by AYEmike

4

961

LS - 1st and 2nd Gen (1990-2000)

1994, 400, 90, cats, dumping, fuel, hot, knock, lexus, located, location, ls, ls400, red, rich, running, sensor, why

'90 LS400 massive lack of power issue

OralePinkY on May 20, 2013

May 21, 2013 01:40 AM
by cobalt91

8

2,894

LS - 1st and 2nd Gen (1990-2000)

1jz, 92, bucking, buking, idel, idle, lexus, low, make, rich, running, sc400, super, swap, turns

1JZ Single SC400 bucking and irregular idle

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1 2 3)

1JZPWRD on Apr 29, 2013

May 9, 2013 08:19 AM
by Ali SC3

44

6,608

SC - 1st Gen (1992-2000)

1uz, 2007, 91, 92, control, fix, idle, lexus, ls400, problems, reset, rich, runs, rx400h, sc400, screw, speed, stalls, stop

Ok I HAVE to finally get around to fixing this idle issue

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1 2 3)

O. L. T. on Mar 8, 2013

Mar 16, 2013 07:22 PM
by O. L. T.

35

6,970

SC - 1st Gen (1992-2000)

300, equip, equips, gs, lexus, lip, os, rich, sale, step, vsxx, wheeels, work, work equip, work vsxx vs-xx

Poll

Work vs-xx or Equip's

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1 2 3)

sc101 on Dec 29, 2012

Mar 6, 2013 11:46 PM
by GZZ-TT

35

6,057

SC - 1st Gen (1992-2000)

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