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Thread: Needing A Wiring Diagram But Coming up Empty (92 k2500)

  1. #1
    Electronic Ignition!
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    Needing A Wiring Diagram But Coming up Empty (92 k2500)

    I have install a 92 TBI 454 big block & 4l80e into my 91 suburban. The drivers side firewall plugs are pin'd different and I'm trying to find the 92 diagram so I can make the two work together (re-pin). I have located the complete wiring diagrams for the suburban. The Suburban was a 350 TBI, 4l80 combo factory.

    Anyone been down this road before? An advise is appreciated.

  2. #2
    Fuel Injected!
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    If you look in definitions/wiring this forum for $85/7060 the wiring diagrams in that thread is probably what you want. They indicate for 1991 but I know those diagrams were correct for a 93 7060 so should be good for 92.
    6395, BHDF, 7.4 BBC lightly modded now 6395 BMHM back to BHDF

  3. #3
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    Unfortunately the bulkhead connector wiring diagrams are not part of the regular ecm wiring diagrams. They can be tough to locate. If you haven't found any by tomorrow I will try to locate some while I am at work.

  4. #4
    Electronic Ignition!
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    much appreciated.

  5. #5
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    What type of vehicle is the '92 engine from (Pickup, Suburban. Chassis Cab)?

    Is the 91 Suburban round c/k style or square r/v style?

  6. #6
    Electronic Ignition!
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    I think I have most what I need at this point. The 91 sub is a v2500 suburban square body and the 92 was a gmc k2500 extra cab long bed. I found the suburban wiring diagrams on the 73-87chevytruck.com site. Very helpful info over there for diagrams. I have found and am using a 91 c/k truck wiring diagram as stated by "myburb" and it seems to be really close. I haven't gotten all the way in to the harness on the 92 BBC yet to confirm it is exactly what right. Hopefully will get there this evening.

  7. #7
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    Ok... If you do need additional diagrams let me know.

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