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  1. Pontiac GP 08 - P0300 & P0420

    Started by sn95gt50, 02-06-2020 04:01 PM
    cel, code, p0300, p0420, pulled
    • Replies: 16
    • Views: 4,873
    Last Post: 02-09-2020 07:34 PM
    by sn95gt50  Go to last post

    Forum:
    04+ Specifics

  2. engine code P0300

    Started by SgtMarshal, 09-13-2019 09:51 AM
    code, disabled, engine, p0300, started
    • Replies: 3
    • Views: 2,075
    Last Post: 09-13-2019 10:10 PM
    by markpa  Go to last post

    Forum:
    5.3L V8 (LS4)

  3. P0300 Random Misfire figured out.

    Started by swtnlow1, 09-17-2016 10:23 AM
    hard start, lose of power, p0300, random misfire
    • Replies: 14
    • Views: 3,120
    Last Post: 01-02-2017 09:39 PM
    by Burbman  Go to last post

    Forum:
    3.8L V6 Naturally Aspirated (L36)(L26)

  4. P0300 solved

    Started by mzbk2l, 04-26-2014 04:27 PM
    l67, misfire, p0300, solved, tech 2
    • Replies: 0
    • Views: 1,800
    Last Post: 04-26-2014 04:27 PM
    by mzbk2l  Go to last post

    Forum:
    General Tech Discussion

  5. Engine chugging/ multiple cylinder misfires??

    Started by dillinger1989, 08-30-2013 12:32 PM
    chugging, chugging or, cylinder, cylinder misfire, engine, misfires, multiple, p0300, temp gauge
    • Replies: 5
    • Views: 1,414
    Last Post: 08-30-2013 09:04 PM
    by genki  Go to last post

    Forum:
    General Grand Prix Discussion

  6. p0300 misfire problem

    Started by poorkid, 08-10-2013 10:32 AM
    misfire, p0300, problem
    • Replies: 18
    • Views: 2,734
    Last Post: 08-22-2013 04:52 AM
    by poorkid  Go to last post

    Forum:
    General Tech Discussion

  7. p0171 and p0300 please help.

    Started by 08 gp lvr, 07-24-2013 05:15 PM
    p0171, p0300
    • Replies: 17
    • Views: 3,803
    Last Post: 07-27-2013 02:21 PM
    by ricksgpgtcolleen  Go to last post

    Forum:
    3.8L V6 Naturally Aspirated (L36)(L26)

  8. 2005 Grand Prix 3.8L suddenly doesn't want to run then shoots a P0300

    Started by Grindal, 07-02-2013 06:02 PM
    2 Pages •
    1 2
    2005, 38l, grand, p0300, prix, run, shoots, suddenly
    • Replies: 20
    • Views: 6,720
    Last Post: 07-26-2013 12:39 AM
    by Grindal  Go to last post

    Forum:
    3.8L V6 Naturally Aspirated (L36)(L26)

  9. P0300 and #6 misfire only happens while it boost

    Started by Boilermaker, 06-04-2013 05:03 PM
    2 Pages •
    1 2
    boost, misfire, p0300
    • Replies: 30
    • Views: 3,806
    Last Post: 06-10-2013 11:06 AM
    by pman64  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  10. p0300 random misfires

    Started by Timing, 04-29-2013 08:43 PM
    misfires, p0300, random
    • Replies: 5
    • Views: 1,571
    Last Post: 04-29-2013 09:44 PM
    by Timing  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  11. P0300 in need of help badly.

    Started by PTGsDaytona500GTP, 04-05-2013 12:50 PM
    badly, p0300
    • Replies: 3
    • Views: 1,005
    Last Post: 04-05-2013 05:07 PM
    by PTGsDaytona500GTP  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  12. GT engine trouble codes p0300 and p0108

    Started by Coyote86, 01-12-2013 01:18 PM
    codes, engine, p0108, p0300, trouble
    • Replies: 16
    • Views: 3,373
    Last Post: 01-19-2013 02:12 PM
    by 01GrandPrixTURBOGT  Go to last post

    Forum:
    3.8L V6 Naturally Aspirated (L36)(L26)

  13. p0300

    Started by 01GrandPrixTURBOGT, 01-14-2013 04:08 PM
    p0300
    • Replies: 6
    • Views: 1,343
    Last Post: 01-18-2013 07:27 PM
    by 01GrandPrixTURBOGT  Go to last post

    Forum:
    3.8L V6 Naturally Aspirated (L36)(L26)

  14. P0300, P0171 issues. Lots of info logged+pics

    Started by deadsnake, 07-17-2012 08:29 AM
    info, issues, logged, lots, p0171, p0300, pics
    • Replies: 16
    • Views: 3,077
    Last Post: 01-17-2013 12:55 PM
    by 01GrandPrixTURBOGT  Go to last post

    Forum:
    3.8L V6 Naturally Aspirated (L36)(L26)

  15. I stumped. Idles and runs ruff. Codes P0300 P0135. New Cat Last year. Help

    Started by siwittschulte, 08-22-2012 09:16 PM
    4 Pages •
    1 2 3 ... 4
    cat, codes, idles, p0135, p0300, ruff, runs, stumped, year
    • Replies: 68
    • Views: 16,428
    Last Post: 08-27-2012 09:09 AM
    by BillBoost37  Go to last post

    Forum:
    3.8L V6 Naturally Aspirated (L36)(L26)

  16. CEL problem codes, P0102, P0300, P1381 and a few more UPDATED!

    Started by buickman104, 04-08-2012 09:34 AM
    cel, codes, p0102, p0300, p1381, problem, updated
    • Replies: 19
    • Views: 3,744
    Last Post: 07-20-2012 11:01 AM
    by buickman104  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  17. p0300 missfire

    Started by falcz420, 01-08-2012 11:03 AM
    missfire, missfire p0300, p0300
    • Replies: 5
    • Views: 1,803
    Last Post: 02-11-2012 02:13 PM
    by dsmuts  Go to last post

    Forum:
    Engine

  18. p0300 miss

    Started by nicks98gtp, 01-13-2012 07:27 PM
    miss, p0300
    • Replies: 11
    • Views: 1,659
    Last Post: 01-14-2012 04:30 PM
    by nicks98gtp  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  19. P0300 Code. Random Misfire NEED HELP!

    Started by JcGTP39, 11-27-2011 05:35 PM
    code, misfire, p0300, random
    • Replies: 16
    • Views: 2,583
    Last Post: 11-28-2011 10:12 PM
    by JcGTP39  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

  20. Stumped with P0300 code

    Started by zach101, 08-20-2011 03:25 PM
    code, guys, mayve, p0300, stumped
    • Replies: 7
    • Views: 2,502
    Last Post: 11-20-2011 04:56 PM
    by trpgtp  Go to last post

    Forum:
    3.8L V6 Naturally Aspirated (L36)(L26)

  21. 4-5k rpm misfire, Code P0300.

    Started by trailshredder, 10-17-2011 07:57 PM
    4 - 5k, 45k, code, misfire, p0300, rpm
    • Replies: 3
    • Views: 1,553
    Last Post: 11-13-2011 07:43 PM
    by trailshredder  Go to last post

    Forum:
    Engine

  22. most common p0300 code fix

    Started by Wingsfreak9, 09-20-2011 07:27 PM
    code, common, fix, p0300
    • Replies: 4
    • Views: 2,358
    Last Post: 09-21-2011 01:12 PM
    by BillBoost37  Go to last post

    Forum:
    General Tech Discussion

  23. Code p0300 misfire caused by cat?

    Started by randywalsh, 09-04-2011 12:50 PM
    cat, caused, code, misfire, p0300
    • Replies: 3
    • Views: 1,695
    Last Post: 09-05-2011 09:44 PM
    by TheOtherNick  Go to last post

    Forum:
    General Tech Discussion

  24. My P0300 discovery

    Started by mayoke, 09-01-2011 07:31 AM
    discovery, p0300
    • Replies: 3
    • Views: 1,209
    Last Post: 09-01-2011 08:12 AM
    by BillBoost37  Go to last post

    Forum:
    General Tech Discussion

  25. Code P0300 , mutiple random missfires, no fix yet

    Started by offroadfury6, 04-05-2011 04:12 PM
    2 Pages •
    1 2
    code, fix, missfires, mutiple, p0300, random
    • Replies: 34
    • Views: 8,927
    Last Post: 07-28-2011 11:28 PM
    by michaelbm  Go to last post

    Forum:
    3.8L V6 Supercharged (L67)(L32)

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