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Need some help on an electrical issue

This is a discussion on Need some help on an electrical issue within the Stereo and Electronics forums, part of the General Help category; Hello everyone, i hope this is in the correct place, if not i apologize. i have a 94 Z with ...

  1. #1
    Junior Member Stephens 94 Z28's Avatar
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    1994 Z28 with a LT-1

    Exclamation Need some help on an electrical issue

    Hello everyone, i hope this is in the correct place, if not i apologize. i have a 94 Z with an LT1. the car has just had a new rebuilt motor swap. the previous owner said they changed the ECM and Motor. my problem is hardly anything in my car will work now. i noticed they had by passed the VAT module with a jumper wire just to make the car run. i am planning on replacing this as i can afford. my stereo, dome light, mirror lights, keyless entry, door dinger....none of these things will work. i have checked all fuses and relays and all check out good. someone cut the plugs from the original stereo plugs and i still cant find the wires lol. anyways, can someone please give me some ideas or suggestions as to what to check or do in order to get this stuff working?

    Thanks!

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    Sounds like a ground or two was missed when everything went back together.

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    Junior Member Stephens 94 Z28's Avatar
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    1994 Z28 with a LT-1

    Do u mean like a motor ground or just a ground in the wiring harness?

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    There are a couple of grounds on most cars -- I am not familiar with the LT1 harness, so not sure. But when that many things are not working, and all the fuses and relays are good, next best suspect is a ground issue.

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    Former Mopar Man 2002ssslp's Avatar
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    A modern wiring harness will have a few different grounding points both under the hood and under the dash. If the harness has been chopped up I would think about a new harness. If it is in good condition I would grab a wiring manual or a schematic. Good luck and make sure you have a good ohm/volt meter.
    My ride is a 2002 Camaro SS SLP #3296 with 30k, LTH, 3" Y, CME, Frost tune, K&N, ported TB, Blackwing lid, Bellows, MSD, Denso Iridium, and 85mm MAF, Bilsteins, Eibach springs, SLP strut brace, Adj. Panhard, TA Girdle, UMI, Pro 5.0, Nitto NT555
    My wife has a 2004 GTO with the rare SAP, 18" wheels, K&N Cold Air System, MSD, Ported TB, Frost tune, Denso Iridium, Flowmaster cat-back, 3200 Yank, 75k

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