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Ignition System (not starter) and ECUs

including engine management: CDI, ECU and DME and running problems (ignition)

242 topics in this forum

  1. 'Classic Retrofit' Bosch CDI+ Replacement Ignition Unit (Spark Box) 1 2 3

    By Jonny Hart,
    • 60 replies
    • 27.9k views

  2. NGK Iridium Plugs - BPR6EIX or BPR8EIX??

    By Chris_911,
    • 4 replies
    • 1.3k views

  3. CHT sensor values for standalone ECU

    By andy121,
    • 2 replies
    • 338 views

  4. ICV buzzing with ignition off

    By Sidebp,
    • 13 replies
    • 546 views

  5. Spark Plug Options

    By rattytat,
    • 0 replies
    • 682 views

  6. Odd starting after replacing a battery.... 1 2

    By 911hillclimber,
    • 42 replies
    • 2k views

  7. DME 3.2: who can check one out for function?

    By 911hillclimber,
    • 0 replies
    • 142 views

  8. Which plugs

    By PeterK,
    • 0 replies
    • 530 views

  9. Testing spark plug wires

    By Northy,
    • 7 replies
    • 1.5k views

  10. ECU PET numbers

    By Beaky,
    • 3 replies
    • 1.2k views

  11. Timing mark walking at idle

    By Northy,
    • 9 replies
    • 1.1k views

  12. 1/2” crank sensor

    By PeterK,
    • 5 replies
    • 488 views

  13. EFi & coil packs

    By PeterK,
    • 4 replies
    • 542 views

  14. Tell me how to check the timing of my 911

    By Ivelosttheplot,
    • 3 replies
    • 1.3k views

  15. Anyone on here have a Clewett / Electromotive XDi ignition system please?

    By 911hillclimber,
    • 1 reply
    • 2.2k views

  16. Ignition switch issue.

    By SCTarga,
    • 7 replies
    • 761 views
    • hmg
    • hmg

  17. How do I fire two coils from one signal?

    By Chris T,
    • 18 replies
    • 5.9k views

  18. CDi Ignition Control Unit - Replacement Options

    By rattytat,
    • 5 replies
    • 2.4k views

  19. How much (charging) voltage is too much for a CDI?

    By Chris T,
    • 2 replies
    • 1.3k views

  20. Re-routing plug wires

    By SurlySurdi,
    • 5 replies
    • 1.2k views

  21. Timing mark on 3.2 distributor, how close do I need to be?

    By Chris T,
    • 13 replies
    • 2.3k views

  22. Trigger wheels and start up

    By Jonny Hart,
    • 11 replies
    • 1.5k views

  23. 911 2.7 Trigger wheel and sensor mount

    By Diesel76,
    • 1 reply
    • 1.3k views

  24. How to test coil on plug coils

    By sopor,
    • 1 reply
    • 1k views

  25. My 123 dizzy curve looks wrong!?

    By Diesel76,
    • 1 reply
    • 2k views

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