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Threads Tagged with p0420

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16804p0420catalyst, 2000, 2003, 2006, 96, bank1, cat, catalyst, code, efficiency, jetta, jettap0420, p0420, system, systembank1, threshhold, threshold

Friends Jetta is tossing this code: P0420 - Catalyst System, Bank1 Efficiency Below Threshold

InTTruder on May 10, 2007

May 10, 2007 11:35 AM
by Scenic Driver

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5

962

TT (Mk1) Discussion

bump, code, hit, p0420

I made it 65,055 miles before

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Multi-page thread

1 2)

PuRe on Apr 18, 2007

Apr 19, 2007 08:59 PM
by Tgr_Clw

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14

816

A4 (B6 Platform) Discussion

18, 2002, 2004, a4, apr, audi, b6, b7, cheap, escort, fix, p0420, p0421, po420, resistor

Need P0421 and P0420 ghetto fix - already STFU

Silver02A4Quattro on Apr 6, 2007

Apr 8, 2007 03:27 PM
by MM120

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9

5,923

A4 (B6 Platform) Discussion

1, 18t, 2001, 2002, a4, a6, audi, bank, catalyst, code, cooper, efficiency, mini, p0420, quattro, spacer, system, threshold, tt

p0420 help ....for those not in the know "Catalyst System Efficiency Below Threshold"

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Multi-page thread

1 2 3)

inwoo on Mar 19, 2007

Mar 19, 2007 03:28 PM
by dagmz6s

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23

7,415

A4 (B6 Platform) Discussion

002, 03, 1, 16804, a4, audi, bank, catalyst, code, efficiency, exceeded, limit, lower, obd, p0420, system, threshold, vag

16804 - Catalyst System; Bank 1: Efficiency Below Threshold P0420 - 002 - Lower Limit Exceeded

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javanator on Feb 26, 2007

Mar 7, 2007 10:03 AM
by javanator

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11

77,224

VAG-COM Discussion

18t, 2002, a4, audi, auto, cat, code, milltek, p0420, quattro

got code P0420 again today...anyone gone to dealer and had this fixed?

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psuaudi on Jul 3, 2006

Jul 5, 2006 04:10 AM
by dagmz6s

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10

1,775

A4 (B6 Platform) Discussion

32, codes, p0420, p0430, touareg

Catalytic Converters gone bad=$$$$$$$$$$$$$$

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Multi-page thread

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RMBQ7 on May 30, 2006

May 31, 2006 06:46 PM
by RMBQ7

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16

1,318

A6 / S6 (C5 Platform) Discussion

3510, intermittent, p0420

Any ideas what these codes refer too?

krue92 on Jan 16, 2006

Jan 16, 2006 07:16 PM
by $P@ZZ

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6

736

A4 (B5 Platform) Discussion

16804, 17536, 3500, 3510, a4, audi, bank, cayman, eurocode, fuel, jetta, maf, p0420, porsche, trim

Can anyone let me know what could be the cause of these CELs...

porsches4ed (APR S3) on Oct 25, 2005

Oct 28, 2005 04:11 PM
by quattrorally

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4

1,068

VAG-COM Discussion

16804, catalyst, p0420, porsches4ed, sporadic, system

this must be CEL week I got some for the second time since yesturday...

porsches4ed (APR S3) on Oct 25, 2005

Oct 25, 2005 07:12 PM
by porsches4ed (APR S3)

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5

592

A4 (B5 Platform) Discussion

12v, 2003, a4, audi, catalyst, code, contour, efficiency, error, p0420, rear, system, threshold, tsb, v6, vr6

Error code P0420 - Catalyst system efficiency below threshold

Nate (ETKA+Scumbag) on Sep 18, 2005

Sep 18, 2005 04:08 PM
by Nate (ETKA+Scumbag)

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8

3,090

A4 (B5 Platform) Discussion

a4, audi, b1, b5, cat, code, e320, lexxcat, o2s, p0420, po420

If I get the P0420 code, which cat or O2 is bad? The one right after the turbo or the next one?

krue92 on Aug 24, 2005

Aug 24, 2005 05:35 PM
by lolyf

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9

1,200

A4 (B5 Platform) Discussion

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