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  1. usar17

    Carb to TBI

    Ahhhhh! I thank you very much for that. Vehicle wiring and the "methodology" to which ifs done is very new to me. That makes a lot of sense tho to think that the egr valve now can be operated based on gear/speed. Jim- You seem to have much better wiring diagrams then the chilton or Haynes...
  2. usar17

    Carb to TBI

    Ya its from the original 85 wiring. It strictly goes from the tranny to this red connection that was plugged into a vacuum switch for the egr then into the dash. I'll look later tonight for wire colors.
  3. usar17

    Carb to TBI

    Awesome thank you. Do I need to worry about that connection in the photo I posted? It was hooked to the solenoid for the egr valve. Makes no sense to me why the tranny would be wired to that unless its just a common ground.
  4. usar17

    Carb to TBI

    ???
  5. usar17

    Carb to TBI

    Another tranny question.... The wires coming up from the transmission split..I thought it only went to the vac sensor for lock up few go in the dash, 2 go to the vac sensor, and 2 went to the "egr bleed sol" What's the scoop with these? Leave that d/c'ed or what
  6. usar17

    Carb to TBI

    Can i also cut out all of the Transmission kickdown wires with no consequences?
  7. usar17

    Carb to TBI

    Ok what's the difference here? :/ I found these two different style spacers for between the TB and air housing. The taller one is plastic, the shorter is metal. ....pros cons what should I use?
  8. usar17

    Carb to TBI

    Thanks :)
  9. usar17

    Carb to TBI

    ...now i'm trying to remember if that red wire was connected to anything :/
  10. usar17

    Carb to TBI

    Just to make this a little easier for me can u identify these? I'm assuming fuel relay is one
  11. usar17

    TBI Spacer Talk

    would something like this require the ECM to be tuned?
  12. usar17

    TBI Spacer Talk

    http://marine-performance-parts.com/cfmtechpowerplatefor435057gmtbiwsingleaircleanerstud.aspx ^Like Skysurfers Now based on a Youtube Video that is posted in a different thread here (I can't find it right now) that compared the Edelbrock Performer and RPM Air-Gap, an open space in the plenum...
  13. usar17

    Carb to TBI

    You referring to the throttle position sensor or the tranny?
  14. usar17

    Carb to TBI

    Thanks man :) I'm gonna hit my favorite yard. They have around 20 trucks and suburbans there between 87-91
  15. usar17

    Carb to TBI

    And can I get a photo of what this throttle plate is supposed to look like so that I get the right throttle body
  16. usar17

    Carb to TBI

    Same number of pins right? Just cut and splice the plug? ....if I find a 87-91 350 with a 700r4...couldn't I pull the ecm and tranny lock up wires? Or is it a different harness all together? And any provisions I need to worry about for cruise control?
  17. usar17

    Carb to TBI

    What years for throttle bodies would work?
  18. usar17

    Carb to TBI

    Nothing currently or that I've seen may have been. Just electronic brakes. This gonna be an issue?
  19. usar17

    Carb to TBI

    more pics...
  20. usar17

    Carb to TBI

    I'm pretty certain that spacer for the air cleaner isn't factory lol. I found in the cab a plastic one that was taller.
  21. usar17

    Carb to TBI

    This is my current throttle plate on my truck
  22. usar17

    Carb to TBI

    Grrrr I'm home now lol will have to be tomorrow. This donor truck was a work truck for a local property management company. I was told the engine was rebuilt a few years ago by GM. Then the tranny blew last winter so they said scree it and gave it to my buddy.
  23. usar17

    Carb to TBI

    Both r from the tbi. When I get home later I'll look at my Carb.
  24. usar17

    Carb to TBI

    Tbi throttle plate
  25. usar17

    Carb to TBI

    Thanks :) was worried about air bubbles and such. I'll pull the lines today and look at that throttle plate.

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