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electronic timing

Discussion in 'ECU's, Electronics, and Tuning' started by D See 2, Oct 3, 2002.

  1. D See 2

    D See 2 Senior Member

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    i dont understand how it is possible to advance/retard timing through a chipped ecu... bottom line, if the cam is exactly set a 0 degrees, the spark plug will fire according to the position of the cam/crank, not the computer.
    am i right on this? if not please explain...
     
  2. pills_PMD

    pills_PMD Super Moderator

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    ignition timing can be advanced or retarded through the computer. the cam timing, which is entirely different can only be changed through the cam gear
     
  3. pissedoffsol

    pissedoffsol RETIRED

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  4. lsvtec

    lsvtec GNU/Linux Evangelist

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    On an ignition with a Distributor the rotor has a contact that is about 90 degrees long. The computer can choose to fire the spark as long as that contact is "touching" a point on the cap. So your computer decides, based on the info it is getting from its sensors, when to fire the spark.
     
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