Author Topic: More Electrical issues  (Read 3772 times)

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Offline Kevin

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More Electrical issues
« on: April 04, 2010, 04:17:36 PM »
Okay guys we've made progress with installing my engine and forward lamp harness to the point that my headlights work, my blower motor works,  etc. BUT the car will not start. We hooked the little wire to the S terminal on the solenoid but nothing. We checked the neutral safety switch, but should there be anything hooked up to it? Also, we have a brown wire run next to a green wire coming out of the firewall that we have NO IDEA as to what it goes to and it's a constant HOT... What is this? The wipers work, the inside lights work, the headlamps work etc etc but nothing from the starter. Yes we have the pink wire running to the distributor and we have the battery being charged by our battery charger.. Please Help..

Also we noticed a weird looking white relay right next to the fuse block inside the car that was REALLY Hot..

« Last Edit: April 04, 2010, 04:20:20 PM by Anastasiofan92 »
1978 Pontiac Firebird Formula

Offline eroc022

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Re: More Electrical issues
« Reply #1 on: April 04, 2010, 04:24:29 PM »
dist should get the brown wire to it too, if its the same as factory colors..... does your motor turn over or you dont even get that much out of it, neutral safety switch should be hooked up too
Eroc
Fixing the car that Restore A Muscle Car jacked up....

Offline Kevin

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Re: More Electrical issues
« Reply #2 on: April 04, 2010, 04:28:58 PM »
Nothing happens when I turn the key. Also my turn signals don't work either... I replaced the entire harness. Also, note that the two wire (brown and green) thing comes out of my firewall ABOVE my fuseblock through a rubber grommet...
1978 Pontiac Firebird Formula

Offline eroc022

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Re: More Electrical issues
« Reply #3 on: April 04, 2010, 04:29:53 PM »
ok really quick answer this is it a factory colored replacement harness? ill check my wiring diagrams
Eroc
Fixing the car that Restore A Muscle Car jacked up....

Offline Kevin

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Re: More Electrical issues
« Reply #4 on: April 04, 2010, 04:34:06 PM »
Directly from M and H Electrical. EXCEPT that brown/green wire was there by itself and didn't come with my replacement harnesses... It just comes straight through the firewall.. Is there anything that needs to be connected to the neutral safety switch? Would that keep it from starting?
1978 Pontiac Firebird Formula

Offline eroc022

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Re: More Electrical issues
« Reply #5 on: April 04, 2010, 04:37:21 PM »
ok only brown wire under the hood in the engine harness is going to the alternator,you should also have a wire going from your battery to your alternator, and thats all i can see,
Eroc
Fixing the car that Restore A Muscle Car jacked up....

Offline Kevin

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Re: More Electrical issues
« Reply #6 on: April 04, 2010, 04:39:29 PM »
So why won't it start?
1978 Pontiac Firebird Formula

Offline eroc022

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Re: More Electrical issues
« Reply #7 on: April 04, 2010, 04:48:48 PM »
hmm not sure there, what color was the wire you hooked up to the stater? should have been purple, also check and see if the collar on the steering wheel is as far counter-clockwise as possible, sometimes those wont rotate as far and it makes the car seem as if its in gear, which wont allow it to start,  which looking at the diagram, that purple wire runs from the neutral safety switch to the starter, id check and make sure its hooked up on the inside....seeing how you asked if something needs to be hooked up im going to have to say thats your problem?
Eroc
Fixing the car that Restore A Muscle Car jacked up....

Offline Kevin

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Re: More Electrical issues
« Reply #8 on: April 04, 2010, 04:52:22 PM »
The wire we hooked up is the correct small purple wire to the starter that is. We have nothing hooked up to the neutral safety switch (That's behind the brake booster right? The metal Tab to the left of the fuse block that sticks up right?)
« Last Edit: April 04, 2010, 04:54:49 PM by Anastasiofan92 »
1978 Pontiac Firebird Formula

Offline eroc022

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Re: More Electrical issues
« Reply #9 on: April 04, 2010, 04:54:34 PM »
hmm i want to say its tied into the steering column, its going to hook up inside of the vehicle, as the purple wire comes out inside and hooks up there.......crawl under the dash and look for the purple wire.....
Eroc
Fixing the car that Restore A Muscle Car jacked up....

Offline Kevin

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Re: More Electrical issues
« Reply #10 on: April 04, 2010, 04:55:31 PM »
We didn't even mess with the inside of the car though.. All we replaced was the engine and forward lamp harnesses..
1978 Pontiac Firebird Formula

Offline eroc022

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Re: More Electrical issues
« Reply #11 on: April 04, 2010, 05:27:16 PM »
do you have any pictures of the parts you are referring to ?
Eroc
Fixing the car that Restore A Muscle Car jacked up....

Offline Kevin

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Re: More Electrical issues
« Reply #12 on: April 04, 2010, 05:28:00 PM »
Just took some, going to upload.
1978 Pontiac Firebird Formula

Offline Kevin

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Re: More Electrical issues
« Reply #13 on: April 04, 2010, 05:34:47 PM »
Mystery Wire One: Very Long Cable Comes through firewall...






Ok Green/Brown Wire coming from above fuse block

You can see it hanging down to the left there












« Last Edit: April 04, 2010, 05:47:17 PM by Anastasiofan92 »
1978 Pontiac Firebird Formula

Offline Kevin

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Re: More Electrical issues
« Reply #14 on: April 04, 2010, 05:37:41 PM »
And Yes I do know that the brown wire goes to the proportioning valve.
1978 Pontiac Firebird Formula