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Threads Tagged with po420

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Exclamation

1998, 2000, 2005, 95, blazer, chevy, code, fault, gas, improve, obd, octane, p0420, po420, trouble

Help? Low Octane Fule Causing a Code (P0420)

suckerpunch on 12-12-2009

11-18-2015 08:51 PM
by richphotos

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7

14,073

2nd Generation S-series (1995-2005) Tech

01, 03, 0420, 05, 2002, blazer, cavalier, cel, chevy, code, engine, p0420, po420, reaing, trouble

Check Engine Light Reading Code "P0420"

JohnBarJB on 11-30-2012

12-01-2012 10:28 AM
by JohnBarJB

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2

4,339

2nd Generation S-series (1995-2005) Tech

1995, 43, 95, 99, 99blazer, blazer, code, fuel, gallon, hold, long, miles, mpg, oo, po420, pressure, why

99 blazer 4.3L 8 mpg 150mile to a tank

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Multi-page thread

1 2)

chaz8645 on 10-07-2012

10-09-2012 02:30 AM
by nalgman

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15

2,653

Engine & Transmission

2000, 2002, 43, blazer, chevrolet, chevy, code, gas, hesistates, hesitating, hesitation, load, p0420, po420, transmission

2000 blazer hesitation need some help

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Multi-page thread

1 2)

whiteg87 on 02-10-2010

09-24-2012 11:31 AM
by kckpjmte

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11

7,751

2nd Generation S-series (1995-2005) Tech

97, change, chevy, code, exhaust, gmc, graph, o2, p0420, pipe, po420, s10, sensor, voltage, yukon

odb p0420 code please help

kjdmg on 02-09-2012

02-10-2012 04:48 PM
by Captain Hook

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4

4,907

2nd Generation S-series (1995-2005) Tech

1996, 420, 96, 97, blazer, bronco, chevy, code, ford, obd, p0420, p0440, po, po420, s10

P0420 and P0440

Steve-o on 10-08-2011

10-08-2011 12:53 PM
by xgiovannix12

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1

2,947

2nd Generation S-series (1995-2005) Tech

Unhappy

2001, air, blazer, code, cool, dirty, flow, hesitate, make, mass, po420, restart, stall, till, truck

Stalling, no start, sit, start and run like normal?

shotnva777 on 09-20-2011

09-23-2011 05:54 AM
by Mike98Blazer

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8

6,201

2nd Generation S-series (1995-2005) Tech

03, 420, 98, blazer, chevrolet, chevy, code, dtc, fn, fuel, idle, injectors, p0420, po420

f-n p0420 anyone try'd this yet

reststopsteve on 07-28-2011

07-28-2011 03:39 AM
by reststopsteve

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0

1,844

2nd Generation S-series (1995-2005) Tech

04, 2002, 420, 43, blazer, chevrolet, chevy, code, fix, knock, p0420, po, po420, spark, truck

PO420 Code

Chandler on 10-16-2010

07-17-2011 11:43 AM
by blazer1992

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6

5,010

2nd Generation S-series (1995-2005) Tech

01, 0420, 1997, 2004, 97, 98, aftermarket, blazer, cat, chevy, code, jimmy, p0420, po420, replace

p0420

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Multi-page thread

1 2)

woopt on 07-02-2010

06-06-2011 08:07 PM
by budman802g

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10

5,119

2nd Generation S-series (1995-2005) Tech

99, blazer, cat, check, chevy, code, common, emissions, p0420, passed, pipe, po420, problem, problems, test

99 chevy blazer cat problem

dhaggy on 11-13-2010

11-13-2010 07:34 PM
by dhaggy

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4

1,720

2nd Generation S-series (1995-2005) Tech

Exclamation

01, 1999, 2000, 99, blazer, buy, chev, chevy, code, engine, icm, jimmy, mil, p0420, po420, troubleshootng

99' Blazer-engine code P0420

cpino on 07-16-2010

08-03-2010 04:17 PM
by helo

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1

5,324

Engine & Transmission

2000, 2002, 420, 43, 97, blazer, chevey, chevrolet, chevy, code, dtc, engine, explained, po, po420

Please help with dtc po 420

flukey on 06-21-2010

06-21-2010 12:10 PM
by flukey

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2

2,271

2nd Generation S-series (1995-2005) Tech

1996, 1998, 96, 98, bank, blazer, catalyst, chevy, cylinder, detected, efficiency, misfire, multiple, p0300, p0420, po420, random, s10, system, threshold, truck

2 Attachment(s)

P0300 code and P0420 code HELP!!

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Multi-page thread

1 2 3 ... Last Page)

98blazr on 04-06-2009

08-21-2009 01:17 AM
by bigdaddykane93

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44

31,996

2nd Generation S-series (1995-2005) Tech

2000, 99, blazer, catalyst, catalytic, chevy, code, codes, converter, diagnosis, engine, p0420, po303, po420, trouble

Engine code P0420 and P0303

swarfel on 06-16-2009

06-16-2009 08:29 PM
by swartlkk

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1

7,196

Engine & Transmission

43, 43l, 97, bank, blazer, bypass, carpet, catalyst, chevy, code, discount, efficiency, fix, georgia, p0240, p0420, po420, system, threshold

P0420 Code Issues

lennyblazer on 06-18-2008

06-19-2008 07:01 AM
by lennyblazer

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3

4,296

2nd Generation S-series (1995-2005) Tech

1997, 2000, 43, 43l, 97, blazer, bravada, catalytic, chevrolet, chevy, code, error, gm, obd, p0420, po420

P0420 Error Code on 97 Blazer

abens on 05-27-2008

05-27-2008 06:00 PM
by portcqb

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1

8,201

2nd Generation S-series (1995-2005) Tech

02, 0420, 1995, 2002, 420, 43, blazer, chevrolet, chevy, code, forum, p0420, po, po420, solutions

p0420 deffinition and solution

2dr5spdblazer on 12-25-2007

12-25-2007 11:24 PM
by rriddle3

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1

1,648

2nd Generation S-series (1995-2005) Tech

1998, 96, 98, blazer, blazerp0420, catalyst, chevy, code, efficiency, engine, obd, oxygen, p0420, po420, s10, sensor, sets, solutions, threshold

Getting p0420 code but seems unlikely

gio17vani on 10-26-2007

10-27-2007 08:43 AM
by swartlkk

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1

5,511

2nd Generation S-series (1995-2005) Tech

1996, bank, blazer, cat, causing, chevy, code, oxygen, p0131, p0420, po420, s10, sensors, show, truck

1996 LT running like crap

blazin true on 07-02-2007

08-01-2007 07:02 AM
by swartlkk

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7

3,887

2nd Generation S-series (1995-2005) Tech

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