Threads Tagged with po300

01, 2003, 60, chevrolet, chevy, code, dtc, engine, fault, forums, gm, misfire, po300, random, silverado

PO300 code

landlords2 on 09-16-2003

08-10-2015 07:25 PM
by lq4headache

12

2,708

Pontiac Firebird 1967-2002

300, car, code, firebird, lt1, misfire, multiple, po, po300, pontiac, shaking

LT1 PO300 misfire shacking

gregfire on 08-13-2013

08-13-2013 01:13 AM
by gregfire

0

1,109

97, bad, catless, code, corvette, ecm, exhaust, hit, limiter, p0300, po300, rev, system, vararam, ws6

p0300 after racing a shelby

BoostedBird on 11-22-2012

11-25-2012 07:40 PM
by gconnoyer

8

1,387

Pontiac GTO 2004-2006

code, crank, drive, flashing, highway, load, make, misfire, missfire, multiple, oxygen, p0300, po300, random, read, sensor, tahoe

Code p0300-Input welcomed....a little stumped

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1 2)

xxKennyDxx on 08-09-2012

11-11-2012 03:40 PM
by robertbartsch

31

14,198

01, 2010, camaro, car, code, data, fine, ls3, mustang, p0300, perfect, po300, prizm, running, runs, seconds, vehicle

P0300 code but car runs fine

bad01gt on 08-13-2012

08-23-2012 09:16 PM
by bad01gt

4

8,748

bad, calibration, car, care, clears, code, crank, drive, eventually, fine, great, light, ls1, o2, p0300, po300, runs, sensor, ses

P0300 code but car runs great

bad01gt on 08-13-2012

08-23-2012 09:16 PM
by bad01gt

5

7,892

0300, 97, camaro, code, coils, fuel, ls1, ls1tech, ls6, lt1, p0300, po300, swapped, tech, test

I have a P0300 code...help !!

Bobby G on 05-05-2012

07-22-2012 10:25 AM
by Bobby G

18

4,312

PO300 Engine Code Issues?

hzemall on 06-09-2012

06-10-2012 08:17 AM
by Old Geezer

1

796

misfire?

KyleW707 on 05-16-2012

05-16-2012 07:55 PM
by LS6427

6

941

97, firebird, ls1tech, lt1, po300, pontiac

PO300 Stumble

Jr.Samples on 05-09-2012

05-09-2012 09:35 PM
by Jr.Samples

2

909

cam, cammed, change, code, fighting, head, imstall, ls1, ls1tech, motor, p0300, p300, pcm, po300, swap

P0300 after heads/cam swap

Austinma62 on 05-01-2012

05-01-2012 06:31 PM
by Tally TransAm

1

2,407

02, boosted, cam, camaro, code, header, headers, install, installing, knock, lt, p0300, po300, sensor, throws

Cam and headers. Got some codes?

BKsNHRA on 04-20-2012

04-27-2012 08:29 AM
by BKsNHRA

11

1,607

01, 02, 2001, bank, check, code, dtc, ls1tech, o2, p0161, p0300, po300, sensor, trans, z28

01 z28 just thrown an p0300 code

Jayday on 02-09-2012

04-14-2012 10:43 AM
by Jayday

16

6,555

0300, converter, gto, loss, ls1, ls1tech, ls2, misfire, p0300, po300, power, ramdom, random, rans, stall

p0300 random misfire

white99ta!! on 03-05-2012

03-05-2012 09:36 PM
by white99ta!!

0

906

03, carbed, check, fuel, lq4, misfire, misfiring, missfiring, p0300, po300, pressure, random, rebuild, silverado, tuner

LQ4 misfire issues

Jim85IROC on 12-04-2011

12-07-2011 01:02 AM
by stangtrader

1

3,817

03, 48, b2, code, converter, oxygen, p0300, pcm, po300, reading, s1, scanner, sensor, silverado, tbss, tune

P0300 on pretty much Stock 4.8

frankmarroquin on 01-16-2011

10-05-2011 04:23 PM
by frankmarroquin

8

1,138

2001, bonneville, c5, code, gxp, obdii, occasional, p0154, p0300, p1133, p1153, po154, po300, pontiac, suburban

P0154, P0300, P1153 after switching to an ORY

KC21386 on 08-17-2011

09-12-2011 06:47 AM
by DannoWS6

8

2,445

Eastern Members

96, air, camaro, code, flow, lead, lt, lt1, mass, p0100, p0300, po100, po300, ss, wire

P0100 and P0300 code problems now what?

Dane. on 08-17-2011

08-17-2011 07:16 PM
by Dane.

0

2,945

2001, 90psi, 97, broken, code, cylinder, exhaust, firebird, ib, leak, misfire, mustang, po300, throw, valve, z28

P0300 Multiple misfire code - check individual cylinders?

Leeet on 08-14-2011

08-15-2011 09:52 AM
by Leeet

5

8,315

active, change, fix, fuel, gmc, gxp, lofoil, ls4, management, misfire, oil, pip4814c, po300, pulley, warranty

trouble with the dealer

gxp-miller-gxp on 08-05-2011

08-06-2011 04:19 PM
by gxp-miller-gxp

11

1,479

LS4 Performance

code, driven, flashing, freeway, highway, ls1, ls1tech, p0300, po300, ses, set

P0300 on Highway cruise

redbird555 on 06-01-2011

06-01-2011 08:27 PM
by redbird555

0

743

P0151

Empatho on 05-10-2011

05-17-2011 11:50 PM
by Empatho

6

3,921

2000, 2002, 300, 3l, camaro, code, location, misfire, misfires, multi, multiple, po300, po300b, random, ss

PO300-multiple random misfire

02sslayer on 04-14-2011

04-15-2011 12:08 AM
by TehGODofGreen

6

4,920

02, 0300, bad, camaro, code, diagnostic, engine, front, hesitates, light, ls1, p0300, po300, sensor, thrown

4th gear pull and got Code P0300 (ENGINE MISSFIRE) for the first time.

ZYBORG on 03-06-2011

03-06-2011 07:20 PM
by camaro981289

6

2,035

afrer, cam, cammed, code, corvette, head, heads, install, ls1, ls2, maf, p0300, p300, po300, swap, trans, untuned

p0300 Code after Heads and Cam

Greekey on 03-01-2011

03-01-2011 01:29 PM
by MM98

3

1,453

02, codes, coil, escalade, firebird, g8, gt, impala, ls, ls1, misfire, mount, p0300, po300, poly, pontiac, ss, test, trans

P0300 code please help!!!

INIT2WIN on 02-16-2011

02-17-2011 12:38 AM
by joshp14

7

1,094

1996, 96, camaro, chevrolet, chevy, code, engine, firebird, formula, lt1, opti, p0141, p0300, po141, po300, z28

code p0141 and code p0300 thrown together what does it mean??

CarolinaCamaro on 01-26-2011

01-26-2011 11:01 AM
by 96lt1m6

3

7,780

93, 98, bank, camaro, code, covers, drivers, fouled, ls1, milky, plugs, po300, po300b, side, spark, v6, valve

po300 runnin out of options please help

97lt1z28 on 01-08-2011

01-24-2011 12:13 PM
by FiredUpZ28

17

1,601

01, 2002, battery, code, ls1tech, misfire, optmum, p0300, po300, reasons, trans

P0300 Misfire Issue

2002 Trans Am on 01-14-2011

01-14-2011 08:53 AM
by 2002 Trans Am

0

640

1998, 3, 300, 95, box, dtc, egg, firebird, firebirdmisfire, formula, fuse, ls1, ls1tech, po300, pontiac, rotten, smell

po300..please help me

97lt1z28 on 01-01-2011

01-06-2011 11:20 PM
by EVERETTDREW

9

800

Cadillac CTS-V 2004-2007 (Gen I)

2007, 60, cadillac, cam, check, code, cts, diagnostic, engine, light, misfire, oldsmobile, p0101, p0300, po300, random

Need help with an engine code

kaddo101 on 12-20-2010

12-26-2010 10:54 AM
by kjr6306

11

2,445

car, code, gm, light, ls1tech, lt1, maf, misfiring, p0336, po300, po336, randomly, ses, stock, throwing

Stock LT1, P0336 code, flashing SES light

colospgsTA on 12-21-2010

12-21-2010 09:08 PM
by robsquikz28

3

3,090

car, cars, exhaust, flooded, ftrm, gunpowder, location, o2, p0300, pic, po300, rear, sensor, smells, st, wash

help with p0300 please

2formulas on 12-17-2010

12-18-2010 02:21 AM
by topspeed7

4

1,481

New LS1 Owners - Newbie Tech

04, 2500hd, air, flow, ford, gmc, ls1tech, maf, mass, misfire, p0101, p0300, p0420, po101, po300, po420, sierra

P0300, P0101, P0420 Please Help

Tim94gt on 12-15-2010

12-16-2010 04:47 PM
by Tim94gt

1

4,502

2000, causing, code, exhaust, exhuast, firebird, idle, leak, ls1, misfire, o2, p0300, po300, pontiac, random

Could an exhaust leak cause a P0300 code at idle?

hitmanws6 on 12-14-2010

12-14-2010 01:53 PM
by flame

2

10,510

1997, car, chevy, code, codes, lt1, misfire, misfires, p0175, p0300, po175, po300, random, rich, running, silverado, stoplight

Car misfires - Codes p0300 and p0175

PsychoticX on 12-03-2010

12-10-2010 12:30 AM
by ws6manny

2

5,555

300, autozone, code, cold, light, ls1, ls6, maf, morning, po, po300, rough, runs, start, starts

PO300 at cold start

O2Form on 12-03-2010

12-06-2010 07:41 PM
by O2Form

14

1,704

LS1-LS6 Swap

Z/28 Dave on 11-04-2010

11-04-2010 06:26 PM
by Z/28 Dave

3

505

300, 98, code, codes, firebird, fireing, installed, maf, po300

PO300 Code! Let me explain.

frack on 09-08-2010

09-10-2010 10:23 PM
by 98pontiac

4

1,163

car, closed, code, engine, fat, gray, idles, loop, ls1, ls1tech, po300, rough, running, smoke, ss, surges, trailblazer

Running Fat + Idle Problems

bichin95redta on 10-08-2006

08-28-2010 02:20 PM
by emenny81

11

5,677

New LS1 Owners - Newbie Tech

1998, 2002, 350, bad, camaro, ci, hard, ls1, p0300, po300, problem, problems, start, z28

bad problems p0300, but is making a sap like stuff come out

Shanna on 07-23-2010

07-23-2010 01:59 PM
by Shanna

2

542

96, 97, camaro, camaroz28, code, codes, firebird, ls1tech, lt1, p0300, po300, pontiac, rid, trans, z28

Lt1 Newbie P0300 code

jtbadboyz28 on 03-24-2010

03-24-2010 01:58 AM
by Bowtie Boy

2

2,047

accelerating, arcing, bosch, cap, chevy, code, lt1, misfire, missfire, po300, radom, random, rotor, wires, z28

Random Misfire Code PO300??

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1 2)

WARDOG on 12-04-2008

02-27-2010 06:12 AM
by TedsB4Csled

39

9,532

2000, car, code, engine, error, firebird, hemi, ls1, misfire, multiple, p0300, p0418, po300, random, trans

problem with this code. p0300 random multiple missfire..

hnaskoct on 07-30-2009

01-23-2010 07:11 AM
by dnkynrbk

15

9,253

1997, bent, cam, common, ford, heads, ls1, misfire, multiple, mustang, p0300, po300, pushrods, random, replace

P0300 random multiple misfire code after replacing bent pushrods

91 LS1 Z28 on 01-17-2010

01-17-2010 04:20 PM
by NHRAFORMULA00

4

3,166

New LS1 Owners - Newbie Tech

car, change, cylinder, dies, dying, idle, idling, light, lincoln, ls1, misfires, misfiring, oil, po300, problems, problemsmisfire, stops

Car started having problems (misfires and almost dies at idle)

01SOMZ28 on 10-29-2009

11-02-2009 09:36 PM
by caddobass

16

8,048

04, code, gto, install, intake, ls1, ls1tech, mazda, p0300, po300, tech

p0300 code after fast install.Help

sscamaro1384 on 09-08-2009

09-12-2009 09:57 PM
by sscamaro1384

2

800

04, 53, bad, code, cold, driving, egr, fix, hemi, ls1tech, misfire, p0300, pcv, po300, spring, valve, warms, weak

Damn POS P0300 code

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1 2)

hurley711 on 05-09-2009

06-27-2009 11:57 AM
by hurley711

23

1,975

102, 2000, 2001, chevy, code, codes, computer, impala, ls1, maf, po102, po300, trouble

trouble code help

linebacker50 on 06-08-2009

06-09-2009 01:11 PM
by 7camaro7

5

554