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Thread: need help asap DBW-DBC conversion

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  1. #1
    Join Date
    Jan 2012
    Location
    DFW, TEXAS
    Posts
    594
    if you already have a dbw harness, find a tac module and pedal. swap with someone who has a dbc harness.
    or find the male-end connectors for throttle position and idle air control; and wire in with the diagram lextech gave ^

  2. #2
    Join Date
    Aug 2013
    Location
    Clarksville, tn
    Posts
    56
    I only have harness, and I have a dbc TB that was givin to me. So id need dbw TB pedal and tac. Thats more money than I wanna spend just for that when could be used for something else.

  3. #3
    Join Date
    Aug 2013
    Location
    Clarksville, tn
    Posts
    56
    Jeff, so I'll have to do is cut plugs of the dbw harness for throttle body add the wires you have shown with new plugs and I should be good

  4. #4
    Join Date
    May 2007
    Location
    Oak Forest, Illinois
    Posts
    276
    The DBW only has 2 wires going to the PCM. The rest of the wires in the DBW T/B connector go to the TAC Module (If I remember correctly). So, you need to run 7 wires from the PCM to the IAC and TPS.

    Jeff
    98 GMC RCSB 2wd, 100% internally stock 305, w/twin T-3 junkyard turbos,Ramjet intake w/42lb inj,12200411 PCM. 4675lbs w/me in it. Best time in 5 passes 13.01@110

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