Threads Tagged with p0431

02, a4, audi, code, diy, fix, p0431, p0507, po421po507

just checked codes, p0507, p0431, p0421 any ideas?

roseyman87 on Jun 24, 2008

Jun 24, 2008 02:46 PM
by S4gasm (LoTR)

3

1,521

S4 (B6 & B7 Platforms) Discussion

2000, 27t, audi, b6, bank, car, catalyst, check, code, engine, light, p0431, s4, threshold, warm

car throw a code P0431 (warm up catalyst below threshold(bank 2)) any ideas on whats wrong

gear_head81 on Mar 31, 2008

Apr 1, 2008 12:03 PM
by bpp

6

4,464

a4, audi, b5, intake, leak, p0421, p0431, s4

P0431 and P0421

nein-reis on Feb 10, 2008

Feb 11, 2008 07:35 PM
by nein-reis

5

988

00, 17865, 27t, audi, b5, cylinder, detected, egt, misfire, p0431, p1453, p1457, s4, short

2.7T Issues - VagCom Content

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87ninefiveone on Jan 6, 2008

Jan 6, 2008 05:46 PM
by BeeRock::Riding Red

10

2,167

S4 (B6 & B7 Platforms) Discussion

001, 16815, 18t, catalyst, engine, ethical, heating, milltek, not, p0431, poppingback, stfa, stickers, up, warm

Damn, I keep getting this code popping back up.

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Imola Ghost on Dec 27, 2007

Dec 28, 2007 07:14 PM
by Rainman4.2

10

2,148

audi, catalyst, cayenne, code, codes, exhaust, intake, milltek, miltek, p0421, p0431, porsche, rs4, s4, warm

Anyone else out there with Milltek DPs getting "Warm Up Catalyst Efficiency Below Threshold" codes

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Ubercar on Sep 20, 2007

Sep 21, 2007 06:48 PM
by daveak05

21

1,884

RS4 (B7 Platform) Discussion

2004, a4, a6, allroad, audi, auid, check, code, engine, main, obd, p0421, p0431, po421, s4

p0421 and p0431 codes

Brattleboot on Sep 8, 2007

Sep 8, 2007 09:30 PM
by CTA4AVANT

1

2,843

30v V6 Discussion

OUTIS4CE on Aug 26, 2007

Aug 26, 2007 07:51 PM
by OUTIS4CE

0

623

RS4 (B7 Platform) Discussion

2001, audi, cabrio, check, code, codes, engine, fault, obd2, p0431, reflash, s4, serious, v6, vw

Fault Code P0431

Ubercar on Aug 16, 2007

Aug 16, 2007 10:00 AM
by Reggie

1

2,915

2001, 42, a6, allroad, audi, audiworld, catalytic, converter, ecm, flash, p0431, reflash, replacements, sensor, testpipe

catalytic converter A6 replacement?

raj99 on Jul 9, 2007

Jul 28, 2007 06:02 AM
by Whitjr

7

914

27t, 28, 633402, audi, ecu, flash, inspection, means, p0421, p0431, reflash, report, tsb, update, vehicle

Just Failed Vehicle Inspection with P0421 & P0431 codes

raj99 on Jul 10, 2007

Jul 12, 2007 09:05 PM
by raj99

5

1,873

A4 (B5 Platform) Discussion

a4, audi, b5, car, catalyst, code, codes, generic, mazda, misfire, p0300, p0431, scan, threshold, warm

Scan code check (not my car, generic P code): P0431 - Warm Up Catalyst Efficiency Below Threshold

Nate (ETKA+Scumbag) on May 16, 2007

May 16, 2007 07:05 AM
by Nate (ETKA+Scumbag)

0

1,080

30, a4, audi, b6, catalyst, cel, p0421, p0431, p0431warm, repair

CEL P0431.. Warm up catalyst, warranty and repair advice needed

sinful7 on Apr 29, 2007

Apr 29, 2007 08:57 AM
by psuaudi

3

822

2001, 2003, 27, 27t, a6, allroad, audi, bank, check, codes, diagnostic, engine, p0431, p1113, wher

2001 A6-2.7t check engine codes

jpc on Jan 31, 2007

Mar 17, 2007 07:02 PM
by modset

7

5,342

2.7T V6 Discussion

16805, 18t, 2, 2003, apr, audi, bank, catalyst, chip, fix, inefficiency, p0431, stage, threshold, warm

How to fix catalyst inefficiency codes - Stage 2 APR, stock dps, Magnaflow catback

Mr.Debo'sS4 on Feb 22, 2007

Feb 22, 2007 02:28 PM
by Jason @ Streetwerke

5

1,081

16805, 17831, 28, a6, audi, cel, combi, p0421, p0431, p1411, p1423, s4, valve, vw

Opinion need - O2 Sensor & Combi Air Valves

plova on Feb 5, 2007

Feb 6, 2007 04:35 AM
by 4Driver4

3

1,143

0421, 2001, a6, audi, back, catalyst, code, codes, coming, efficiency, p0421, p0431, s4, threshold, warmup

P0421,P0431 Cat Efficiency Codes with APR software

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tmaslar on Jan 21, 2007

Jan 24, 2007 06:54 PM
by Jason @ Streetwerke

12

3,809

07, 2004, audi, code, codes, p0421, p0431, s4

Newbie Question: P0431 CEL Code

87ninefiveone on Jan 19, 2007

Jan 21, 2007 07:00 AM
by 87ninefiveone

9

718

Now that I have a key to the kingdom.....not sure I want it!

jfk92 on Dec 8, 2006

Dec 8, 2006 01:53 PM
by jfk92

3

758

A4 (B5 Platform) Discussion

2002, a4, action, audi, ic, o2, p0431, p1176, p1177, quattro, repair, sdb, service, shuts, starts

Engine shuts down, then starts and works perfectly...

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ybaudist on Nov 28, 2006

Nov 29, 2006 07:51 PM
by RKA

24

4,604

catalytic converter

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jrk on Nov 2, 2006

Nov 3, 2006 06:34 PM
by jrk

11

737

16815, 27, 28, a6, audi, bank, ecu, efficiency, fix, flash, low, p0431, threshold, warm

For you 2.8-ers out there...what is your exhuast and suspension setup?

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iProDrive on Oct 12, 2006

Oct 14, 2006 12:23 PM
by Kris Hansen

39

2,282

P0421, P0431, flashing "Air Bag" indicator. And whimpy tires.

millerwd on Sep 14, 2006

Sep 14, 2006 01:54 PM
by millerwd

4

361

Audi allroad

P0431 with Piggies. Any ideas? Yes, I STFA...

KompMan420 on Jul 24, 2006

Jul 25, 2006 04:27 AM
by KompMan420

6

589

2000, 27t, 28, a4, audi, code, p0300, p0421, p0431, po300, po431

Multiple Codes p0300, p0421 and p0431

WillyumYum on Jun 20, 2006

Jun 20, 2006 11:42 AM
by WillyumYum

2

1,635

2004, audi, bulletin, c260503, catalyst, fix, p0421, p0431, recall, service, tech, technician, threshold, touareg, vw

For those of you with the infamous catalyst error/CEL...

snowcat on May 17, 2006

May 18, 2006 06:28 AM
by Edd W

8

4,042

2002, a4, a5, a6, audi, b6, check, code, engine, exaust, exhaust, leak, leaks, light, obd, p0431

P0431 code = exhaust leak?

walt-02A4 on Apr 14, 2006

Apr 14, 2006 11:54 AM
by walt-02A4

0

3,430

A4 (B5 Platform) Discussion

CEL's galore... mostly Efficiency Below Threshold

sag wagen on Oct 25, 2005

Oct 25, 2005 06:47 PM
by auditech8309

4

587

17535, 18t, 2002, a4, a6, adaption, audi, b5, bank, code, codes, dtc, fix, mixture, p0431, quattro

System too rich DTCs. suggestions?

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Christian (Stage Ow) on Aug 26, 2005

Aug 31, 2005 05:51 PM
by B5QShip

16

2,564