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Threads Tagged with p0420

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03a4, 18, 2000, audi, bug, cat, code, engine, fault, forum, low, p0420, reading, temp, tt

'03 A4 1.8T - Engine Code Issues...

TurboB6 on 01-17-2011

01-17-2011 07:27 PM
by TurboB6

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0

1,080

0420, a4, audi, code, drive, focus, ford, frive, it, long, p, p0420, po420, safe, zx3

P0420----Can I still drive it???

Postah on 08-07-2006

12-26-2010 05:10 PM
by caodan2010

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7

16,294

1999, a4, audi, bellevue, cat, catalytic, check, code, converter, engine, flow, high, install, light, p0420, pipe, repair, test, trip, wa

Test Pipe questions

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Multi-page thread

1 2 3)

PacNWA4 on 11-23-2010

12-03-2010 01:09 PM
by PacNWA4

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26

8,958

18t, 2000, 2002, a4, a4t, audi, break, converter, empty, p0420, push, quick, torque

2 Attachment(s)

Acceleration issues

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Multi-page thread

1 2)

PacNWA4 on 11-15-2010

11-18-2010 02:13 PM
by PacNWA4

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15

2,117

034, 18t, 19995, 2001, 42l, a4, a6, audi, change, diy, needed, oil, p0420, p0741, pan, quarts, tt

2 Attachment(s)

Oil Change FROM HELL !!! Is it totaled??

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Multi-page thread

1 2 3)

Chewster on 09-20-2010

09-21-2010 12:00 PM
by Chewster

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24

13,255

0420, 2001, 28, a4, audi, audiforums, cat, code, codes, efficiency, error, fault, oxygen, p0420, p0430, sensors

2001 Audi A4 2.8L ATQ CAT converter error code

varunboriah on 09-09-2010

09-09-2010 12:55 AM
by varunboriah

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0

3,015

01, 18t, 2001, a4, audi, code, diagnose, diagnosing, forum, p0420, po420, quattro, sensor, turbo, upstream

Help diagnosing p0420

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Multi-page thread

1 2)

hauptjr on 04-16-2010

04-18-2010 09:11 PM
by turbo kraut

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12

3,065

2002, 2003, 2004, a4, audi, cat, change, check, code, codes, engine, fuel, p0420, pump, tt

P0420 Code Triggered

asnatch02-a4 on 03-03-2010

03-05-2010 09:38 PM
by Dan1969

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2

1,553

03, 30, a4, audi, cel, code, codes, conversion, converter, engine, fault, number, p0420, trouble, tt

Fault Code P0420 (cat converter)

silverghost on 09-02-2009

09-02-2009 08:59 PM
by silverghost

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0

3,193

17522, 18t, a4, audi, audizine, cat, check, flow, high, internal, oem, p0420, resistance, smog, testpipe

Original or OEM cat converter? recommendations...?

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Multi-page thread

1 2)

AOOOO4 on 02-10-2009

07-04-2009 06:07 AM
by TRPTony

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13

3,580

2000, 2001, a4, a6, audi, b6, bank, catalyst, code, diagnostics, p0420, po420, quattro, system, threshold

P0420 Bank 1: Efficiency Below Threshold CEL on 2001 Audi A6 Avant

win_r6_02 on 11-24-2008

11-25-2008 05:32 PM
by win_r6_02

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6

10,169

01, 18t, a4, a6, audi, b6, bad, cat, cel, clear, code, codes, fix, p0420, po420

CEL code P0420?!

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Multi-page thread

1 2)

Mike02A4 on 02-17-2008

09-29-2008 05:45 PM
by ahsaw

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17

21,548

9125, a4, actron, acutron, audi, automotive, code, cp9125, forum, p0420, pocket, pocketscan, reader, scan, tt, work

Actron pocketscan tool

mrdavies on 07-30-2008

07-30-2008 07:44 PM
by achTTung

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3

2,612

18t, 2001, 2005, a4, audi, b6, code, o2, obd11, p0171, p0420, p0441, po171, po441, quattro, rear, sensor

Codes - p0171, p0441,p0420

less_of_me on 04-09-2008

04-09-2008 06:49 PM
by Mike02A4

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1

4,026

1500, 2002, 2006, 2007, a4, a6, audi, code, evap, gmc, large, leak, p0420, p0455, s4, sierra, system

P0455 emmisions

madrasautoparts on 11-20-2007

11-21-2007 02:31 PM
by techbod

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3

2,977

002, 008, 16804, 18t, 2003, a4, audi, avant, codes, codesp1479, implausible, intermittent, p0420, p1479, p1479008, signal

The latest problem...am I screwed?

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Multi-page thread

1 2)

Sebass on 07-20-2006

10-01-2007 06:20 PM
by acetrebo

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11

4,810

01616, 17608, 3510, audi, boost, control, intermittent, p0420, p1200, p1297, p12973500, p1602, pressure, tt, vag, valve

TT VAG-COM Faults Found

gravity1 on 08-13-2007

08-13-2007 04:06 PM
by cincyTT

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9

2,618

18t, 2002, 2004, a4, audi, cel, fix, flash, fouler, foulers, o2, p0420, plug, po420, sensor, spacer, spark

CEL P0420

pv1127 on 07-27-2007

07-27-2007 09:15 PM
by pv1127

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6

1,762

audi, cat, code, efficency, efficentcy, efficiency, inefficentcy, p0420, replacing

P0420 Cat efficiency code

mamesA4 on 07-07-2007

07-08-2007 02:47 AM
by auditech79

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1

1,543

04, a3, a4, audi, boost, code, intake, low, manifold, open, p0229, p0420, pressure, runner, stuck

Beat on it / Break it. Dumb Dumb. Codes. DV?

dscott on 06-12-2007

06-12-2007 05:22 PM
by dscott

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0

1,448

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