p0431 - AudiWorld Forums - Threads Tagged with p0431

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allroad, audi, change, code, o2, p0431, sensor

O2 Sensor Fix Gone Bad...

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1 2)

Gsrob on Apr 7, 2014

Apr 29, 2014 01:08 PM
by Gsrob

19

18,931

A6 / S6 (C5 Platform) Discussion

2002, 30, a6, audi, c5, catalytic, converter, gas, p0431, replacement, waste

2002 C5 3.0L Catalytic Converter CEL Question

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kappa4201 on Mar 26, 2014

Apr 3, 2014 11:22 AM
by meternerd

30

11,158

A6 / S6 (C5 Platform) Discussion

a6, anti, audi, cat, code, fix, fouler, obd, p0431, plug, po431, repair, spacers, spark, tt

The old P0431 Code - DIY fix? - Help Please

Beats_77 on Sep 25, 2012

Sep 25, 2012 12:47 PM
by awdjunkies

4

12,498

Audi allroad

01, 27t, a6, audi, catalyst, catylist, code, codes, efficiency, emissions, p0431, pass, threshold, vag, warmup

HELP with 01 audi a6Q 2.7t codes please.

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Ryanl2488 on Sep 4, 2012

Sep 5, 2012 12:58 PM
by Ryanl2488

14

8,936

A6 / S6 (C5 Platform) Discussion

audi, b5, catalytic, cel, clear, code, engine, error, intermittent, lacquer, laquer, p0421, p0431, s4, thinner

2001 S4, CEL/Catalytic Issues

yakavish on Mar 21, 2012

Apr 9, 2012 03:16 PM
by yakavish

9

4,665

S4 / RS4 (B5 Platform) Discussion

2002, 2004, audi, cat, denali, large, leak, p0421, p0431, p0455, pre, temp, warm, xl, yukon

Trouble getting through emissions testing

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1 2 3)

M4NB00B5 on Jan 24, 2012

Jan 26, 2012 05:50 PM
by jcman

20

6,539

A6 / S6 (C5 Platform) Discussion

16805, 16815, 2000, a6, audi, bank, cat, catalyst, code, efficiency, low, p0421, p0431, quattro, treshold, trouble, warm

Fault codes:P0431,P0421,P1603-intermittent?

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tmaslar on Jan 20, 2007

Nov 21, 2011 11:52 AM
by 02ALLROAD02

24

49,349

VAG-COM Discussion

04 A6 Quattro 3.0 opinions needed

soxfan401 on Sep 18, 2011

Sep 27, 2011 04:37 PM
by soxfan401

5

1,238

A6 / S6 (C5 Platform) Discussion

2001, 42, a6, a8, america, audi, bank, catalyst, efficiency, p0431, p1130, recall, specs, threshold, warm

Help with P0431, P1128, P1130

Quattro 88 80 on May 3, 2010

Aug 17, 2011 02:43 PM
by Adrian02S4

7

5,235

Audi allroad

2002, a4, a6, allroad, audi, audiworld, b6, code, codes, engine, log, o2, p0421, p0431, trouble

Codes P0421 and P0431

ShadowF on Aug 13, 2011

Aug 13, 2011 03:31 PM
by ShadowF

0

5,033

A4 (B6 Platform) Discussion

17819, 2007, 99, a4, a6, accelerating, acceleration, audi, code, p0431, popping, slipping, slips, symptoms, tires, transmission

Slipping while accelerating/ possible causes

Dector22 on May 13, 2011

May 21, 2011 12:32 PM
by Cruffler

5

5,202

A4 (B5 Platform) Discussion

2000, 28, a6, audi, code, oil, p01423, p0431, plug, plugs, ross, spark, tech, wells, wiki

Need advice on recommended work

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1 2)

Ky_audi_man on Oct 23, 2010

Oct 27, 2010 02:28 PM
by Ky_audi_man

12

1,905

A6 / S6 (C5 Platform) Discussion

2, 2004, 30, a6, audi, bank, catalytic, change, code, converter, converters, p0431, po431, quattro, replace, side

2004 Audi A6 Quattro 3.0 Automatic Need Advice On Catalytic Converter

upops on Sep 19, 2010

Sep 20, 2010 08:40 AM
by raj99

2

2,602

A6 / S6 (C5 Platform) Discussion

42, audi, bank1, catalitic, catalytic, catylic, codes, converter, convertor, ct, mechanic, miata, milford, p0421, p0431, reflash, return, weigh

Catalytic Converter Opinions - Please Weigh In

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ilsaccente on May 25, 2010

May 28, 2010 04:42 AM
by ilsaccente

23

6,052

A6 / S6 (C5 Platform) Discussion

2002, 2003, 30, a4, audi, bank, catalyst, code, cold, efficiency, p0431, quattro, threshold, warm, weather

P0431 only in cold weather

AudiOH on May 16, 2010

May 18, 2010 04:12 PM
by AudiOH

4

3,042

A4 (B6 Platform) Discussion

0431, 2002, a4, a6, allroad, audi, cel, check, code, codes, driver, engine, light, oil, p0431, side

Check engine light code p0431

Audi for life 1987 on May 5, 2010

May 6, 2010 12:10 PM
by Pete@ECSTuning

2

6,965

A4 (B6 Platform) Discussion

2000, a8, audi, code, cross, d3, finding, leak, number, p0431, p1128, p1128p1130, p1130, rs6, s4, vacuum

Help with codes P0431, P1128, P1130

Quattro 88 80 on May 4, 2010

May 4, 2010 01:06 PM
by Quattro 88 80

0

2,349

2.7T V6 Discussion

Post Cat 02 Sensor Location

stevetjrGA on Feb 28, 2010

Mar 7, 2010 10:08 AM
by stevetjrGA

5

2,062

A4 (B6 Platform) Discussion

17965, 2001, 2004, 2012357, 27, 27l, 4b0907551, a6, allroad, audi, catalytic, converter, p0421, p0431, tsb

Help with codes for 01 A6 2.7

tjscanlon on Dec 29, 2005

Jan 27, 2010 05:14 PM
by leeststorm

5

1,758

A6 / S6 (C5 Platform) Discussion

17863, 17867, a6, audi, cat, code, exhaust, fix, gas, implausible, inefficiency, p0431, p1113, p1459, s4, temperature

I am getting a check engine light in my car took it to my buddys that has a vagcom

M22 on Jan 24, 2010

Jan 24, 2010 04:13 PM
by rktskicar

1

3,839

S4 / RS4 (B5 Platform) Discussion

27t, a6, air, audi, c5, code, intermittently, mods, p0431, pump, runs, s4, secondary

Secondary Air Pump running intermittently

J_A_J on Dec 25, 2009

Dec 25, 2009 07:31 PM
by quickaudi:STFA

1

2,000

2.7T V6 Discussion

a6, audi, back, bad, bank, catalyst, code, coming, efficiency, error, gas, p0431, porsche, threshold, warm

P0431 Catalyst Warm Up Efficiency Below Threshold

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1 2)

chianm on Nov 15, 2004

Sep 18, 2009 02:52 PM
by vellnueve

15

24,965

A6 / S6 (C5 Platform) Discussion

2002, 30, a6, a8, audi, catalyst, cathalyst, cel, code, p0118, p0431, po118, quattro, tt, warm

Ack! P0431 and P0118 codes... Any ideas?

vellnueve on Sep 12, 2009

Sep 12, 2009 08:00 PM
by vellnueve

1

2,922

A6 / S6 (C5 Platform) Discussion

16805, 20002, 30, 30l, a4, a6, audi, cats, giac, p0421, p0431, po421, s4

Looks like I need either both O2 sensors replaced or both Cats replaced.

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1 2)

A4AdMan on Mar 1, 2009

Apr 21, 2009 12:45 AM
by diagnosticator1

16

4,372

A4 (B6 Platform) Discussion

1, 2002, a4, audi, audiworld, b5, bank, catalyst, code, dtc, efficiency, p0421, p0431, quattro, s4, threshold, warm

I Keep getting this code 16805 / P0421 Warm Up Catalyst; Bank 1: Efficiency Below Threshold

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1 2)

Blk-S4-01 on Feb 18, 2009

Feb 23, 2009 03:52 AM
by Blk-S4-01

19

22,263

S4 / RS4 (B5 Platform) Discussion

16805, audi, cap, code, codes, gas, leak, n80, p0431, tank, test, vag, valve

Tank Leak Test?

siriuss4 on Feb 17, 2009

Feb 17, 2009 06:48 AM
by siriuss4

0

1,184

VAG-COM Discussion

2002, 2004, a4, a6, audi, bank, bank2, catalyst, code, p0431, quattro, sline, threshold, warm, warming

MIL light on, Code: P 0431, Warm up catalyst below threshold bank 2

Krisinu on Feb 16, 2009

Feb 16, 2009 06:19 PM
by O2Allroad

3

2,575

A6 / S6 (C5 Platform) Discussion

2001, allroad, audi, audo, bulletin, ecm, flash, p0431, passing, smog, technical

Need help! SD area Allroad needs ECM flash to pass smog!

sonnybihis on Feb 6, 2009

Feb 8, 2009 01:40 PM
by TwentyValveB5+S4

8

824

SoCal Discussion

audi, cel, codes, p0421, p0421code, p0431

Anyone ever get a P0431 and P0421 code when their CEL came one?

kalpesh on Jan 29, 2009

Jan 29, 2009 04:20 PM
by kalpesh

0

1,117

Canadian Discussion

16815, 2003, a4, a6, audi, bulletin, catalyst, cel, code, ecu, flash, mazda, p0431, s4, service, vw, warm

Questions about P0431/16815 Warm Up Catalyst

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1 2)

MrGoodbytes on Dec 26, 2008

Dec 27, 2008 03:01 PM
by Nate (ETKA+Scumbag)

19

6,462

A4 (B5 Platform) Discussion