p0420 - ClubLexus - Lexus Forum Discussion

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GS300 cat problem

popek31 on 07-20-17

09-26-23 03:03 PM
by canatto

8

9,384

GS - 3rd Gen (2006-2011)

catalytic convertor, check engine light, emissions, p0420

Live data O2 readings and code P0420

1stock2is on 09-01-23

09-01-23 01:17 PM
by 1stock2is

0

633

IS - 2nd Gen (2006-2013)

c1201, is250, mechanic, nashville, p0420

P0420 VSC Light & Wheel Speed Sensors C0200, C0205 C0215

brcollings on 08-20-18

06-17-23 09:57 PM
by Winslow96

1

3,219

IS - 2nd Gen (2006-2013)

Replaced cats on both sides, still getting P0420

Gmoney32 on 05-20-23

05-20-23 07:10 AM
by Gmoney32

0

474

LX - 1st and 2nd Gen (1996-2007)

06, 2007, 330, 430, alarm, alternator, bad, c1223, c1241, code, gx470, lexus, p0420, p0430, replaced, tracoff, vsc

AWD, VSC alarms with Codes P0420 and P0430

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1 2)

clyde1952 on 10-22-13

03-16-23 01:55 PM
by Rxlexus350

23

15,798

RX - 3rd Gen (2010-2015)

04, 2004, 330, catalytic, check, code, converter, engine, lexus, p0420, problem, problems, rx, rx300, rx330

2004 RX330 catalytic converter issue P0420

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1 2)

djensen623 on 05-03-11

01-23-23 01:04 PM
by vitieubao

18

48,233

RX - 2nd Gen (2004-2009)

2004, 2005, 33o, catalytic, code, codes, convetor, es330, es350, lexus, p0420, p0430, p430, po430, rx, rx330, trouble

2004 rx 330 - P0430 code

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1 2)

soda7o on 10-06-11

10-09-21 07:12 AM
by artfelt

16

54,172

RX - 2nd Gen (2004-2009)

2003, emissions test, es300, p0420, smog test

Smog Test Soon - 2003 ES300, Code P0420

LanceLink on 01-11-20

01-12-20 12:05 PM
by Arsenii

3

528

ES - 1st to 4th Gen (1990-2006)

Check engine light p0420 code

Jweb2 on 12-20-19

12-20-19 08:10 PM
by Byprodrive

8

12,077

GS - 4th Gen (2013-2020)

02 sensor, 2002 es300, catalytic converter, p0420

Check engine, trac off and vsc light on at same time, have error codes! read on...

DIYDD on 05-22-17

10-02-19 10:11 PM
by Richardsr

11

7,812

ES - 1st to 4th Gen (1990-2006)

P0430 and pending P0420

Orion1019 on 01-28-19

01-28-19 04:05 PM
by Orion1019

0

914

IS - 2nd Gen (2006-2013)

catalyticconverters, es330, p0420, p0430, p2241

Nagging P0430 (and now a pending P0420 too!) 2004 ES330

mjbtn on 12-28-18

01-03-19 06:03 PM
by Nad1370

8

2,029

ES - 1st to 4th Gen (1990-2006)

My Journey to solve the P0420 error - NOT RESOLVED!

myculito on 10-07-18

10-16-18 01:38 PM
by myculito

10

4,392

IS - 2nd Gen (2006-2013)

catalytic converter, es 300, es300, oxygen sensor, p0420

ES 300 P0420 issue - fixed

satiger on 09-16-18

10-09-18 05:57 AM
by ArmyofOne

8

2,496

ES - 1st to 4th Gen (1990-2006)

catalyst, p0420, trac off light, vsc light

VSC and Cel on P0420 code catalyst threshold

mvrod on 09-29-18

10-03-18 02:24 PM
by mvrod

3

1,277

IS - 2nd Gen (2006-2013)

gears, p0420, p0500, slipping, transmission

RX300 01 Transmission gears slipping help please

zer0xhdx01 on 10-21-17

11-05-17 08:25 PM
by zer0xhdx01

3

2,382

RX - 1st Gen (1999-2003)

ES300 1999 addressing P1354 on heels of P0446 on heels of P0420

blckphillp on 09-22-16

02-22-17 09:09 PM
by blckphillp

10

3,279

ES - 1st to 4th Gen (1990-2006)

1354, 1999, 430, auto, code, control, es300, lexus, ls, oil, p0420, p1354, sc400, symptoms, valve

Question on Codes p1354 and P0420

bronco2454 on 08-04-12

11-27-16 07:04 PM
by burteboy

4

2,560

ES - 1st to 4th Gen (1990-2006)

Can I use spacers on my downstream 02 sensor?

ssgi4in12 on 11-14-16

11-14-16 07:55 AM
by JAB

1

1,446

RX - 1st Gen (1999-2003)

1998, 300, 98, cel, code, es, es300, gs, gs430, lexus, lexuses, ls400, p0420, po420, rx300

Code p0420 and interesting turn aorund.....

satiger on 02-16-10

11-29-15 11:25 AM
by azcat90

7

11,306

ES - 1st to 4th Gen (1990-2006)

Need help -Error Codes on ls400 1998 - p0420, p1126, p1129

secolor on 09-19-15

09-19-15 02:31 PM
by secolor

0

1,898

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

Code P0420. Bad Catalytic or O2 sensor?

bb2tosc on 07-23-15

07-29-15 03:34 PM
by 3L4jzz31

2

4,409

Performance & Maintenance

catalytic converter, gs300, oxygen sensor, p0420, p0430

2001 GS300 P0420 and P0430

20012003rx on 06-01-15

06-13-15 10:22 AM
by Mcon

6

6,432

GS - 2nd Gen (1998-2005)

P0330 & P0420 Appear after O2 sensors replaced (RX300)

RyanBill on 02-06-15

02-11-15 11:01 AM
by RayN

5

4,377

RX - 1st Gen (1999-2003)

2006, 300, actron, autoscanner, backfire, codes, gs, is300, lexus, ls460, means, p0420, vsc

P0420!! What does this mean?

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1 2)

Kumar350 on 04-17-13

11-16-14 09:03 AM
by Bichon

26

12,834

IS - 2nd Gen (2006-2013)

2005 gx470 obd11 p0420 p0430

hamedmoosa on 08-15-14

09-08-14 03:27 PM
by 470SNC

7

17,867

GX - 1st Gen (2003-2009)

catalalyic, misfire, oxygen sensor, p0420

Please need help regarding 2006 Lexus GS 300 OBD Codees

goodbadboy on 08-14-14

08-15-14 05:58 AM
by goodbadboy

4

4,223

GS - 3rd Gen (2006-2011)

catalytic converter, clogged, p0420, p0430

What if I remove cat converters? - no emissions control here

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1 2)

Eliaquim on 06-12-14

07-09-14 12:57 PM
by Eliaquim

16

9,592

RX - 2nd Gen (2004-2009)

P0420 & P0430 Help please

(

1 2)

srob817 on 06-07-14

06-20-14 10:51 PM
by aneidiaz

23

14,748

GS - 2nd Gen (1998-2005)

2000, 300, catalyc, catalytic, catalytic converter, converter, emission, es, es300, lexus, o2 sensor, p0420

2000 Lexus ES 300 Catalytic Converter Issue

ribines300 on 04-23-14

04-23-14 12:42 PM
by PuReChaos

3

8,387

ES - 1st to 4th Gen (1990-2006)

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