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Thread: 93 ecm pin lay out?

  1. #1
    Join Date
    Nov 2003
    Location
    england uk/San Diego
    Posts
    106
    im looking for the ecm pin lay out for my 93 tbi, can anyone hook me up?
    new project
    37 m-series 3/4 ton chevy truck,
    plans: 5.3/4l80e, cut down ford 9 inch, 6piston brakes

  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    V6 or V8? TBI or Vortec?
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  3. #3
    Join Date
    Nov 2003
    Location
    england uk/San Diego
    Posts
    106
    v6 tbi vin z
    new project
    37 m-series 3/4 ton chevy truck,
    plans: 5.3/4l80e, cut down ford 9 inch, 6piston brakes

  4. #4
    Join Date
    Nov 2003
    Location
    england uk/San Diego
    Posts
    106
    i found the pin lay out but its for a
    94 350 tbi

    i think it will be good enuff for wut im trying to do tho

    i have no 1st gear, manually down shiftin it or just putting it
    in drive

    so i think its a wiring problem, so im gonna check over everything to
    make sure its not my tranny itself

    because the tranny was rebuilt, not saying its not a problem within the tranny
    but im just trying to make sure
    new project
    37 m-series 3/4 ton chevy truck,
    plans: 5.3/4l80e, cut down ford 9 inch, 6piston brakes

  5. #5
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    As far as I can tell, the 93 4.3L engine only used wiring for the torque converter lock up control. The kick down is controlled via a cable from the throttle body down to the valve body. The shift would be controlled by a set of governor weights that swing out with speed to signal the shift. I don't believe they put the electronic shift transmission until at least 94. I could be wrong, but my manuals don't show a 4L60E in 93.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  6. #6
    Join Date
    Nov 2003
    Location
    england uk/San Diego
    Posts
    106
    i got 4l60e in the truck
    new project
    37 m-series 3/4 ton chevy truck,
    plans: 5.3/4l80e, cut down ford 9 inch, 6piston brakes

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