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Thread: 95 tahoe-lq4 harness

  1. 01-19-2010 10:19 PM #1
    GroundUpTahoe
    GroundUpTahoe is offline Junior Member
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    95 tahoe-lq4 harness

    i have a 95 tahoe that i have put a 99 lq4 in and my new harness has a oil pressure output and i was wondering witch of the three wires on my 95 harness oil pressure sender plug would be the signal to the gauge? i disected the sender and it looked like the center wire but i want to make sure. also can i just cut the plugs off and tuck in the unused wires from the 95 harness? right now i have all the things i need off of the 95 harness seperated out but the unused plugs are to big to put wire loom over so they have to go somehow. i do want to keep the wires there just incase for some crazy reason i was to put a tbi engine back in and i could just keep the plugs and reconnect if that was the case. also with the hydroboost power steering pump can i just plug off the third hose because i have all new brake booster and master cylinder so i want to use them. and one last thing, is my factory tach going to work with the signal from the lq4 computer or do i need a signal converter? i appreciate any help. thanks
    1995 2door tahoe, 15" solid axle swap, dana 44 front 5.13's, 10 bolt rear 5.13's, 40 inch toyo mt's, lq4 & smoke dog racing bionic 80
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  2. 01-20-2010 12:27 AM #2
    RedHeartbeat
    RedHeartbeat is offline WTH JUST HAPPENED?
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    Dude, so many questions... LOL

    cut off unused wires back to the main harness.

    the center wire is the pressure output lead but won't mate up to your old dash signal. Get an adapter and put it in the factory location or tap the oil return block above the oil filter and put your old style factory sending unit there.

    you have to get your PCM tune set to match your tahoe tach. I think its a three pulse signal per rev. Your tuner will most likely know exactly.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
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  3. 01-20-2010 05:18 PM #3
    GroundUpTahoe
    GroundUpTahoe is offline Junior Member
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    ok what about a torque converter unlock brake signal? shouldnt there be a wire in the 95 harness (round trans plug) that allready has that signal? also does anyone make a oil cooler delete kit?
    1995 2door tahoe, 15" solid axle swap, dana 44 front 5.13's, 10 bolt rear 5.13's, 40 inch toyo mt's, lq4 & smoke dog racing bionic 80
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  4. 01-21-2010 12:06 AM #4
    GroundUpTahoe
    GroundUpTahoe is offline Junior Member
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    ok how does tan w/black stripe sound for the tcc wire?
    1995 2door tahoe, 15" solid axle swap, dana 44 front 5.13's, 10 bolt rear 5.13's, 40 inch toyo mt's, lq4 & smoke dog racing bionic 80
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  5. 01-21-2010 10:44 PM #5
    GroundUpTahoe
    GroundUpTahoe is offline Junior Member
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    well figured out the wiring or atleast i think i did. and well guys it RUNS!! all gauges work corectly including the tach. this thig feels like its going to be awsome on the road!! and maybe off a little lol i'll post up some pics if i get to mess with it tomorrow before it gets dark
    1995 2door tahoe, 15" solid axle swap, dana 44 front 5.13's, 10 bolt rear 5.13's, 40 inch toyo mt's, lq4 & smoke dog racing bionic 80
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  6. 01-22-2010 04:14 PM #6
    flattopwill
    flattopwill is offline OBS fan
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    Awesome! I love me some pics so bring it on!
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