Threads Tagged with po420

99, c6, cat, corvette, forum, header, headers, hiflow, installing, kooks, ls2, muffler, p0420, po420, straight

just Installed "KOOKS" Headers Today

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1 2)

jpee on Oct 7, 2011

Oct 10, 2011 09:08 AM
by SuperchargedStroker

23

2,534

0430, 1996, 2005, c6, car, catalyst, cats, clog, code, corvette, forced, induction, p0420, p0430, po420

Have O2 codes P0420 & P0430 need help!!

1badzo6 on Jul 13, 2010

Dec 14, 2010 09:58 PM
by Joe_G

9

3,632

1982, c4, c5, cat, cats, codes, corvette, definitions, headers, locations, o2, pass, po420, po430, sim, tune, vette, zr1

No cats?

Sick C5 on Jun 24, 2010

Jun 26, 2010 04:34 PM
by ipuig

17

5,131

2007, c5, c6, c6z06, calibration, catalist, code, codes, corvette, dtc, p0420, p0430, po420, z06, zo6

[Z06]

P0420 Code

SziTech on Jun 23, 2010

Jun 25, 2010 07:18 PM
by old.hot.rodder

8

9,765

2001, 2007, affect, c5, code, codes, corvette, diagnose, engine, ls1, performance, po420, po430, suburban, zo6

Help po420 po430 codes

Turbo Kid on Dec 13, 2008

Mar 12, 2010 11:46 AM
by lucky131969

9

2,026

accel, c5, corvette, dfi, headers, improvement, kooks, lt, miami, performance, po420, po430, sct, stoich, tuners, tuning, vette

Advice on Tuning

02blkvert on Jan 8, 2010

Jan 10, 2010 08:12 AM
by phils C5 vette

8

1,347

1999, 99, c5, cags, check, code, codes, corvette, engine, mountain, p0420, po420, po430, reprogram, z06

[Z06]

MIL Lamp - P0420 (dealer wants to swap cat)

mr.radon on Nov 16, 2009

Dec 9, 2009 11:41 PM
by 383vett

15

4,100

Need help fast

theVcar on Sep 4, 2009

Sep 6, 2009 10:05 PM
by CMY SIX

14

553

2007, 2008, 2009, c6, check, code, corvette, engine, light, manually, po420, reset, warning, z06, zo6

[Z06]

2008 Z06 Check Engine Light Came On Today - Question

STR8V8 on Jul 24, 2009

Jul 25, 2009 11:20 PM
by lthrneck

6

6,179

[Z06]

Need help on header and tune

jm4471 on May 11, 2009

May 12, 2009 07:02 PM
by andreas g.

3

711

code, codes, disable, hp, hptuners, mask, p0420, p0430, permanently, po420, tuners, turn, vette

Disable P0420 and P0430?

clif on Apr 3, 2008

Apr 3, 2008 10:31 AM
by FRCTony

2

3,617

2007, c6, corvette, diabling, disable, disabling, hptuners, ls7, o2, o2corvette, po420, rear, sensor, sensors, turn

right way to disable rear O2's on header install

Hooked4Life on Oct 29, 2007

Oct 31, 2007 09:30 PM
by Hooked4Life

6

4,283

C6 Scan & Tune

2007, code, corvette, engine, po4030, po420, po430

1999 C5 PO430 and PO420

WMW on Oct 25, 2007

Oct 25, 2007 09:25 PM
by tblu92

3

1,146

c5, check, code, corvette, dic, engine, light, ls1, p0420, po420, po430

Check Engine Light -- DIC Code P0420

2K4Vert on Oct 4, 2007

Oct 5, 2007 10:16 AM
by 2K4Vert

3

1,062

08, 2006, 420, c6, code, corvette, header, headers, install, p0420, p0430, po420, race, ripp, z06

Headers P0420 Code

toro1966 on Jul 28, 2007

Jul 29, 2007 07:02 PM
by don.donc

16

4,644

2007, 40, c4, c6, corvette, exhaust, hp, ls7, p0430, po420

dynatech exhaust system 35-40hp?

Z06_N_SD on Apr 11, 2007

Apr 17, 2007 10:47 PM
by Icemanskis

6

1,064

bank, c5, corvette, efficiency, low, p0420, po420, system, twc

P0420-TWC System Low Efficiency Bank 1 questions...

skeeterJD on Mar 27, 2007

Mar 27, 2007 05:46 PM
by skeeterJD

4

872

C5 General

Is ti possible to 'retune' the parameters for PO420/PO430 set?

WhiteDiamond on Sep 23, 2006

Sep 25, 2006 05:29 PM
by Chuck CoW

6

718

2002, code, codes, corvette, dic, o2s, p0420, p0420corvette, po420, rear, shut, tuner, turn

DIC Code P0420

PVHolgado on Jul 26, 2006

Jul 28, 2006 10:26 AM
by Billdog350

4

946

0420, 3030, c5, c6, clear, code, corsa, corvette, cot, erase, innova, p0420, p0420p0430, po420, ways

How To Clear Code? P0420?

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1 2)

BIGGGIE on Jul 6, 2006

Jul 10, 2006 09:15 PM
by BIGGGIE

21

5,294

Am I OK to drive back to Canada with these codes??? P0420 & P0430

4GTABODT on May 17, 2006

May 18, 2006 09:15 AM
by 99 vett babycar

7

892

C5 General

0420, 2006, bank, c4, c5, chevy, code, codes, corvette, engine, ls1, p0420, p0430, po420, reset, z06

Code Help - P0420, P0430

sgrubbs on Mar 8, 2006

Mar 8, 2006 01:12 PM
by rudolph schenker

6

1,680

C5 General

0420, 2002, c, c5, chevrolet, code, codes, corvette, dtc, hc, ls1, p0420, p0440, po420, po440, z06

P0420 H C Code

billjax on Feb 4, 2006

Feb 6, 2006 07:32 PM
by dpd

7

3,499

420, c6, code, corvette, performance, po420

Need help with a code DTC PO420

etteroc27 on Aug 15, 2005

Aug 15, 2005 03:07 PM
by etteroc27

0

357

C4 Tech/Performance

0420, c5, code, corvette, error, headers, light, longtube, ls1, mil, oxygen, p0420, pcm, po420, reported, senor, slp

Code P0420 need opinions

FrankTank on May 4, 2005

May 10, 2005 11:02 PM
by dvettetech

8

1,860

what is po420 & po430 TWC SYSTEM LOW EFFICENCEY

tramminc on Feb 20, 2005

Feb 20, 2005 11:56 AM
by tramminc

4

463

C5 Forced Induction/Nitrous

code ? what is a 10-pcm p0240 code?

racerrob333 on Dec 12, 2004

Dec 12, 2004 12:04 PM
by RoadRebel

1

571

0420, 0430, c6, code, corvette, engine, headers, p0420, po420

Headers and P0420

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1 2)

Dirty Howie on Sep 18, 2004

Sep 20, 2004 11:55 PM
by SLO VETTE

20

1,792

10pcm, c5, camaro, changing, code, codes, corvette, engine, malfunction, octane, p0420, p0430, pcm, po420, remedy

PCM codes P0420 & P0430 Replace CATS Anyone have these codes?

speedyc5 on Feb 1, 2004

Feb 7, 2004 10:48 AM
by speedyc5

11

2,163

c, c5, chevrolet, code, corvette, custom, dtc, ls1, p0420, po420, tune

I need some help with code P0420 H C .. LS1 edit ?

YOULLUZ on Jun 19, 2003

Jun 21, 2003 12:53 PM
by YOULLUZ

2

709

Help with P0420 code

quick98 on May 14, 2003

May 15, 2003 02:12 AM
by ROCKnROLL

1

1,336

2002, c5, code, codes, corvette, engine, error, po420, po420b

Error code PO420

grady on May 23, 2002

May 24, 2002 10:15 PM
by POLOVETTE 94

6

968