Once home, it’s time to research how to pare down the wiring harness. That’s best done by reading lots of the TBI tech threads on Binder Planet (<a href="http://www.binderplanet.com/forums/index.php" title="" target="_blank" rel="nofollow">binderplanet.com/forums</a>). The most useful thread is called “Step By Step Real World Build Up” in the Injection Tech section of the forum. Special thanks to the folks who assembled all this info and maintain the site. Here is a harness we pared down and some of the wires that we pared out after trimming off all the wire loom and electrical tape. You can also see how almost all of the wires are labeled, including the ones we pared out. See the black plastic box under the wires? That’s the bottom of the underhood power distribution box from a 1995 Chevy truck.