p0420 - Mazda3Club.com : The Original Mazda3 Forum - Threads Tagged with p0420

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Threads Tagged with p0420

Threads Tagged with p0420

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2002, 2012, 999, big, deal, egr, giving, mazda, mpg, p0402, p0420, protege, replacing, sensor, unfixed, valve

EGR a big deal? Pls help a n00b!

Isabellatrix on Sep 15, 2011

Dec 15, 2011 08:56 AM
by aaronjames

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12

4,956

3rd Gen Protege/MazdaSpeed/P5/MP3

323, 99, 99mazda, belt, catalytic, change, changing, converter, mazda, o2, p0420, problems, protege, replace, replacing, sensor, timing

'99 Mazda Protege problems and questions

thrax on Jun 22, 2011

Jun 22, 2011 04:21 PM
by thrax

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0

5,360

3rd Gen Protege/MazdaSpeed/P5/MP3

02, 2002, 2004, cel, check, code, codes, ecl, engine, es, light, mazda, mazdaspeed, p0012, p0171, p0420, protege

CEL codes P0171/P0420

chiefmg on Apr 22, 2006

May 18, 2007 04:25 AM
by telltom

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3

9,228

Mazda Service Info

ECU code 420

(

Multi-page thread

1 2)

Jas00x on Jan 23, 2004

Feb 4, 2004 05:52 AM
by blackp5ca

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15

3,574

3rd gen Engine/Drivetrain

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