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-   -   what are the wires running out of the 80amp fuse in main fuse box (https://www.rx7club.com/2nd-generation-specific-1986-1992-17/what-wires-running-out-80amp-fuse-main-fuse-box-929185/)

Andrizzanizz 11-02-10 03:05 PM

what are the wires running out of the 80amp fuse in main fuse box
 
I searched and i couldnt find shit.

I just need to know what the 2 wires in the front and 1 wire in the back of the main 80amp fuse go to.

the wires that have 10mm bolt that screws them in.

satch 11-02-10 03:24 PM

Do you know what color the wires are? On the side of the fuse box closest to the firewall a Black wire is connected to the Main fuse and it drops down below the fuse box about a foot or so to a black connector which then runs to the ignition switch to provide it with constant voltage.

Andrizzanizz 11-02-10 03:26 PM

all the wires are black.

the 1 wire on the back or the right side of the 80amp fuse is power im sure.

Are the other two ground?

satch 11-02-10 03:38 PM

None are grounds. On the side closest to the battery is the Black wire which connects the fuse box to the positive terminal of the battery. There are two Black wires with stripes. Black/Green, which comes from the 40 amp IGN INJ fuse, and the Black/Blue wire that comes from the 60 amp BTN fuse (goes to interior fuse box to provide constant power to battery buss fuses). The B+ wire from the alternator ties into one of the Black wires connected to the fuse box but it doesn't run directly to the fuse box that is visible, but from the factory it is tied into one of the two Black wires hidden out of sight.

Andrizzanizz 11-02-10 03:46 PM

i wish i had a camera to take a picture and show you what im talking about.

there are two 10mm screws on the front of the 80amp main fuse. the top wire on that is running to two wires that are spliced together.

the other one on the bottom is cut and not connected to anything.

i bought the car like this im just trying to figure out where the wires go to.

satch 11-02-10 03:59 PM


Originally Posted by Andrizzanizz (Post 10299801)
i wish i had a camera to take a picture and show you what im talking about.

there are two 10mm screws on the front of the 80amp main fuse. the top wire on that is running to two wires that are spliced together.

the other one on the bottom is cut and not connected to anything.

i bought the car like this im just trying to figure out where the wires go to.

On my car, which it totally unadulterated, there are two bolts on the side closest to the battery. Bottom one goes to the battery and the top one is nothing but the bolt as in no wires connected to it. The wire that feeds to the battery has to have battery voltage on it. What the other wire is who knows but it's not a factory wire and it definitely is not a ground so that should tell you something. Disconnect both wires and check for voltage on one as there should be one with constant voltage coming from the battery. Then start the car up and check for voltage on the Black wire not connected and if it has voltage on it then it comes from the alternator.

Andrizzanizz 11-02-10 04:01 PM

Thanks man, so that wire was unncessary. Now i just need to trace down the other wire.
I appreciate it man.

satch 11-02-10 04:10 PM


Originally Posted by Andrizzanizz (Post 10299822)
Thanks man, so that wire was unncessary. Now i just need to trace down the other wire.
I appreciate it man.

Depending on whether a previous owner rewired the original wiring or added something else as in non-factory. Makes a difference.

Andrizzanizz 11-02-10 04:24 PM

yeah it does, i had to undo a mess of switches and shit there were burn out and all this wiring.

misterstyx69 11-02-10 05:44 PM

One from battery.
Ya see the Positive Thick cable scoots down to the starter,but the engine bay fuse block needs 12 volts,so there is a "thinner" wire that comes off the Battery Connector and goes to the fuse block to feed your Components/accessories..whatever.
The other wire comes off the Fuse block and goes to the alternator.


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