Need help with motor harness wiring - Zilvia.net Forums | Nissan 240SX (Silvia) and Z (Fairlady) Car Forum

Grocery Cart · 04-21-2013, 10:31 PM

I bought a new s13 shell, it previously had an sr which is probably irrelevant. I took the s14 ka out of my other s13 shell, and swapped it into the new shell. Wouldn't start. Wouldn't do anything actually.
So here are my questions.

1. What should be connected to the positive battery terminal? And the negative?

2. The fuel pump is hardwired to the battery/switch. As in there's a power wire going from the battery to a switch to the pump, and a ground going from the pump to the switch to the negative terminal. Will that work?

3. The starter is also wired like this. Except it's a momentary switch. Will this also work?

4. How exactly does the ACC get power? The pump turns on, the starter spins. But there's no spark. I think this is basically the same as the first question though..

Before anyone says anything, 1. Yes I've searched. 2. No I'm not posting this in the small questions thread. If I did I would likely barely get any answers I need.
Any help is appreciated.

S14jake · 04-21-2013, 10:54 PM

buy a real harness

Grocery Cart · 04-21-2013, 11:02 PM

Quote:

Originally Posted by S14jake

buy a real harness

I'm in high school with a minimum wage job saving up for college and to move out. Why would I spend money on something that I already have.
I have the same harness that was in the car, but decided to take it into my own hands and wire up those two things, whether it was a good idea or not. Either way, there were no wires cut in the harness, only on the fuel pump.

Grocery Cart · 04-26-2013, 01:15 PM

bump. msglth

aga · 04-26-2013, 01:20 PM

download a book on automotive electrics, read that first. most of the things, like the fuel pump need relays and fuses . have a fire extinguisher handy. a big one. its too many things to explain through a forum, i guess you dont know the basics. i don't know much about electrics either, but my mate is an electrician and redid my whole car that i just bought, it was a REAL mess. so yeah, download or buy a book, read up, that's how you learn.

Alamo_City_210 · 04-26-2013, 01:53 PM

the fsm diagrams will show you what goes where. its alot to read through but its well worth it. and as stated above, it alot to try and explain over the net. just be patient and read. its beenworking out for me. more reading than wrenching at the moment. im new to 240's but im catchin on quick. FSM is a blessing in black and white

04-21-2013, 10:31 PM	#1
Grocery Cart Zilvia Junkie Join Date: Aug 2011 Location: Baton Rouge, Louisiana Posts: 582 Trader Rating: (2) Feedback Score: 2 reviews	Need help with motor harness wiring I bought a new s13 shell, it previously had an sr which is probably irrelevant. I took the s14 ka out of my other s13 shell, and swapped it into the new shell. Wouldn't start. Wouldn't do anything actually. So here are my questions. 1. What should be connected to the positive battery terminal? And the negative? 2. The fuel pump is hardwired to the battery/switch. As in there's a power wire going from the battery to a switch to the pump, and a ground going from the pump to the switch to the negative terminal. Will that work? 3. The starter is also wired like this. Except it's a momentary switch. Will this also work? 4. How exactly does the ACC get power? The pump turns on, the starter spins. But there's no spark. I think this is basically the same as the first question though.. Before anyone says anything, 1. Yes I've searched. 2. No I'm not posting this in the small questions thread. If I did I would likely barely get any answers I need. Any help is appreciated.

04-21-2013, 10:54 PM	#2
S14jake Zilvia Member Join Date: Aug 2008 Location: Santa Monica, CA Age: 34 Posts: 253 Trader Rating: (11) Feedback Score: 11 reviews	buy a real harness __________________ meh

04-26-2013, 01:15 PM	#4
Grocery Cart Zilvia Junkie Join Date: Aug 2011 Location: Baton Rouge, Louisiana Posts: 582 Trader Rating: (2) Feedback Score: 2 reviews	bump. msglth

04-26-2013, 01:20 PM	#5
aga Zilvia Junkie Join Date: Mar 2013 Location: Athens, Greece Age: 45 Posts: 580 Trader Rating: (0) Feedback Score: 0 reviews	download a book on automotive electrics, read that first. most of the things, like the fuel pump need relays and fuses . have a fire extinguisher handy. a big one. its too many things to explain through a forum, i guess you dont know the basics. i don't know much about electrics either, but my mate is an electrician and redid my whole car that i just bought, it was a REAL mess. so yeah, download or buy a book, read up, that's how you learn.

04-26-2013, 01:53 PM	#6
Alamo_City_210 Zilvia Member Join Date: Aug 2012 Location: san antonio tx Posts: 190 Trader Rating: (2) Feedback Score: 2 reviews	the fsm diagrams will show you what goes where. its alot to read through but its well worth it. and as stated above, it alot to try and explain over the net. just be patient and read. its beenworking out for me. more reading than wrenching at the moment. im new to 240's but im catchin on quick. FSM is a blessing in black and white