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Threads Tagged with p0420

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02, 0420, 05, 2002, 24, a4, audi, catalyst, code, codes, efficiency, p0420, p0430, po420, trible, v6

codes p0420 and p0430 on my a4 2.4 v6

scanny1 on May 12, 2012

Mar 26, 2014 11:26 AM
by pa4ul

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6

7,678

audi, p0420

P0420 no more :-)

ericcota2003 on Sep 14, 2013

Sep 14, 2013 07:09 AM
by ericcota2003

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0

9,509

2001, a4, audi, code, error, p0420

P0420 - Catalyst Code

JoshuaMcbee on Jul 8, 2013

Jul 8, 2013 07:28 PM
by JoshuaMcbee

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0

25,182

18, 18t, 97, a4, audi, icm, injector, p0302, p0420

CEL P0302 97 a4 1.8t NOT ICM UNIT

thefuture54 on May 7, 2013

May 9, 2013 10:23 PM
by thefuture54

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2

2,289

04, 18t, 2004, a4, audi, code, del, exhaust, fault, find, manual, p0420, specs, speed, transmission

A4 2004 1.8T manual transmission P0420 continuous fault code

Gunter337 on May 5, 2013

May 6, 2013 02:34 AM
by CryptoStorm

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1

6,976

audi, check, code, engine, exhaust, light, p0420, resonator, software

Check Engine Light w/ P0420 code

Gunter337 on May 5, 2013

May 5, 2013 08:41 PM
by Gunter337

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2

5,713

Intake, Headers and Exhaust

2001, 2006, 3510, a4, allroad, audi, code, diy, error, fault, p0302, p0322, p0420, po302, quattro, urgency

Misfires: p0300, p0302, p0322

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Multi-page thread

1 2 3)

hauptjr on Apr 1, 2010

Apr 28, 2013 01:06 AM
by MichaelBojsza

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24

26,999

Red face

1, 18t, 2000, a4, audi, bank, bmw, catalyst, code, efficiency, forums, p0420, s5, system, threshold, v8, x5

P0420 Catalyst System Efficiency Below Threshold (Bank 1)

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Multi-page thread

1 2)

M3Armand on Jan 31, 2013

Mar 12, 2013 04:53 PM
by Mark C

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10

68,285

01, 02, 18, 18t, a4, audi, b6, code, engine, lifestyle, p0420, po420, price, turbo, v35

'01 1.8T Check Engine Light / Code P0420

eelpie on Dec 26, 2010

Jan 27, 2013 06:20 PM
by M3Armand

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1

3,445

01, a4, anti, audi, b6, code, didnt, diy, ecu, fouler, oxygen, p0420, p420, po420, reflash, sensor, trick, work

p0420 code completely confused HELP PLEASE!!!!!!!

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Multi-page thread

1 2)

justyk31011 on Sep 3, 2012

Sep 18, 2012 11:51 AM
by justyk31011

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14

13,223

02, 03, 18t, 420, a4, add, audi, bad, cat, catalytic, coil, converter, fault, p0420, sensor, spacer, upstream

Converter Question

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Multi-page thread

1 2)

joeyac02 on Feb 7, 2012

Feb 11, 2012 06:33 PM
by joeyac02

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12

3,466

03, 2003, 2005, a4, audi, catalyst, catalytic, converter, cts, engine, esp, light, p0102, p0420, p0421, warm

Engine and ESP lights on (P0102, P0172, P0420, P0421)

romar1086 on Aug 29, 2011

Jan 3, 2012 06:51 PM
by 20090401

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1

6,620

02, 3510, a6, audi, bank, catalyst, code, efficiency, o2, p0420, pass, sensor, sensors, system, threshold

P0420 CATS OR 02 SENSOR? 01 2.8l fwd

budhani786 on Dec 22, 2011

Dec 23, 2011 10:44 AM
by budhani786

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2

3,984

04, 0420, 18t, 2000, 2004, a4, a6, audi, catalyst, code, codes, engine, fault, navigation, p0420, po420, system, threshold

2004 audi a4 quattro 1.8t diagnostic trouble code p0420

mckinn43 on Nov 30, 2011

Dec 7, 2011 02:01 AM
by MTS

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1

6,183

01, 2000, 27t, allroad, audi, c5, code, evap, leak, p0420, p0442, p1600, po442, s4, small

new to Audi, evap code P0442 Help!

BlackWag on Sep 25, 2011

Oct 20, 2011 01:52 PM
by cshideler

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1

7,518

Allroad Model Line

Angry

18t, 2002, a4, audi, catalyst, code, miles, monitor, p0411, p0420, p0420034motorsport, po420, ready, reset, rode

Need Help with code P0420!!!!!!

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Multi-page thread

1 2 3)

ahsaw on Sep 6, 2008

Sep 30, 2011 09:06 AM
by vito914

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25

20,403

02, 03, 0420, 18t, 2002, 2003, a4, audi, b6, cel, code, p0420, po420, sensor, that

CEL code P0420

shiles831 on Sep 11, 2011

Sep 12, 2011 01:29 AM
by shiles831

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2

3,517

001, 16804, 2001, 2002, a4, a8, audi, catalyst, code, efficiency, fault, p0420, systembank1, threshold, vw

1 Attachment(s)

Fault code 16804 P0420-001 Advise Please

Harryjman on Jun 24, 2011

Jun 24, 2011 03:58 PM
by Harryjman

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0

6,030

002, 4000, a3, a4, audi, b6, exceeded, intermittent, limit, lower, p0321, p0420, p0441, rain, rpm, upper

Please Help ME!!!!!!!

Cameron92 on Apr 30, 2011

Apr 30, 2011 06:29 PM
by Audi Tek

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1

3,299

2001, 28, a6, audi, bank1, bank2, catalytic, code, converter, dtc, p0130, p0150, p0420, trouble, versus

O2 sensors, DTC P0130 & P0150

drliming on Feb 13, 2011

Feb 13, 2011 03:42 PM
by drliming

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0

6,520

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