Mazdaspeed 3 Troubleshooting

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  1. L337TurboZ
    Like x 6

    TROUBLESHOOTING SHEET

    L337TurboZ, Aug 27, 2021
    Replies:
    3
    Views:
    9,435
    Awafrican
    Aug 28, 2021
  2. Turbojohnny

    Poor startup and no throttle response

    Turbojohnny, Jul 17, 2025 at 12:48 AM
    Replies:
    5
    Views:
    91
    Turbojohnny
    Jul 18, 2025 at 12:03 PM
  3. gv_racing

    Giles' Mystery High RPM High KR

    gv_racing, Jul 3, 2025
    Replies:
    5
    Views:
    171
    Easter Bunny
    Jul 15, 2025 at 9:30 PM
  4. SpeedyThrees

    Stumbling, rough running, stalling, now no start

    SpeedyThrees, Mar 19, 2025
    Replies:
    9
    Views:
    355
    Enki
    Jul 14, 2025 at 3:35 AM
  5. Prometheus

    BNRS4 won't boost past 10psi.

    Prometheus, May 22, 2024 ... 2
    Replies:
    20
    Views:
    741
    Curt0143
    Jul 12, 2025 at 8:26 PM
  6. 08Speed3

    Stutter in boost that goes away when warm

    08Speed3, Apr 17, 2025 ... 2
    Replies:
    32
    Views:
    839
    08Speed3
    Jul 12, 2025 at 1:06 PM
  7. Sand

    PRV replaced, fuel pressure still tests low while off

    Sand, Feb 24, 2024 ... 2
    Replies:
    25
    Views:
    3,115
    Francisco
    Jul 11, 2025
  8. Scaytale

    Engine Noise, suspect timing chain.

    Scaytale, Apr 24, 2025
    Replies:
    13
    Views:
    639
    Scaytale
    Jul 3, 2025
  9. Kaleb T

    07 mazdaspeed 3 positive and negative ltft issues

    Kaleb T, Jun 3, 2025
    Replies:
    1
    Views:
    205
    Crazycanadian
    Jun 30, 2025
  10. silentuss

    Crank No Start | Hit a Bump While Braking | Gen 2

    silentuss, Jun 28, 2025
    Replies:
    0
    Views:
    106
    silentuss
    Jun 28, 2025
  11. slospeed3

    Car slipping out of 5th and 6th gear after replacing pivot shaft bearing, breather, and seal

    slospeed3, Jan 10, 2024
    Replies:
    5
    Views:
    995
    SirScips
    Jun 26, 2025
  12. joshbunnett13

    Low Boost, AFR Stuck at 14.85, STFT stuck at 0

    joshbunnett13, Jun 18, 2025
    Replies:
    1
    Views:
    138
    Easter Bunny
    Jun 18, 2025
  13. Nitr0EngiE

    clutch goes soft after boost

    Nitr0EngiE, Jul 22, 2016 ... 2
    Replies:
    30
    Views:
    8,543
    Brado
    Jun 16, 2025
  14. Nameless1298

    [SOLVED] ENG Bar 15a Fuse keeps blowing

    Nameless1298, Jun 14, 2025
    Replies:
    3
    Views:
    176
    Easter Bunny
    Jun 15, 2025
  15. Nameless1298

    Car died while driving, now wont start

    Nameless1298, Jun 7, 2025
    Replies:
    5
    Views:
    225
    Nameless1298
    Jun 14, 2025
  16. DustinDriver

    Help with rfi misfire?

    DustinDriver, Apr 23, 2025 ... 2 3
    Replies:
    50
    Views:
    942
    Enki
    Jun 9, 2025
  17. dinnerplate

    No-Start Fueling Issue

    dinnerplate, Jun 5, 2025
    Replies:
    7
    Views:
    265
    Enki
    Jun 8, 2025
  18. Brady Harrison

    [SOLVED] Need help with power cut at 5000 and 5500RPM

    Brady Harrison, Apr 25, 2024
    Replies:
    14
    Views:
    1,357
    drew10101010
    May 29, 2025
  19. Jaharpe

    Cranks, fires then dies after rebuild

    Jaharpe, Apr 20, 2025 ... 2 3 4
    Replies:
    67
    Views:
    1,888
    Jaharpe
    May 27, 2025
  20. nunzi

    Smoking Under Acceleration

    nunzi, May 25, 2025
    Replies:
    2
    Views:
    196
    nunzi
    May 25, 2025
  21. JohnnyTightlips
    Like x 6

    [SOLVED] P0335 after new turbo and ex manifold

    JohnnyTightlips, Jun 14, 2021
    Replies:
    4
    Views:
    2,374
    JohnnyTightlips
    May 24, 2025
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