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ECM on my 84...

Discussion in 'The Garage' started by MEPR, Mar 30, 2005.

  1. MEPR

    MEPR 1/2 ton status

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    Alrighty so i have an ecm, what does this thing do? I dont have a computer controlled carb and wires come from my distributor and im guessing my temp and oil senders. Is the ECM just for controll of the 700r4? Thanks.
     
  2. pauly383

    pauly383 Daddy383 Staff Member Moderator

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    Its just for spark retard on the timing . Mostly seen on 305 trucks due to the 9.2:1 compression , to keep them from pinging on pump gas .

    I left mine in the truck , but pulled the distributor for a regular HEI from 76 Nova application with a V8:k5: :k5:
     
  3. dyeager535

    dyeager535 1 ton status Premium Member

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    They installed ESC so that when the owner converts to fuel injection they have a place to mount a real ECM. :)
     
  4. MEPR

    MEPR 1/2 ton status

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    ok so when i swap the 700/208 for a 465/205 it wont affect anything right. That was my only concern.
     
  5. dyeager535

    dyeager535 1 ton status Premium Member

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    That ECM has nothing to do with lockup, so other than spark retard, it does nothing and won't affect your swap.
     

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