1986 z31 n/a help!

[devz31]

I owned this car about a year ago. My boyfriend wired in a head unit in it and it got stolen,ripped it out.the exposed wires touched,sparked,and the car never ran again.I had another car and electrical confused me so i sold it to my boyfriends grandpa(biggest regret ever!).well,they didnt even touch it for about a year since they had it.they offered it to me for $500 and i took it.Well that guy is no longer my boyfriend by the time i was getting the car back. he put it on a dolly and trashed the fenders and bumper ,but thank got i have another z31 sittin around i can use as a parts car.But to the point,i still have the problem.

before i get started on it and ruin anything,anyone have any suggestions.I had this problem before with a del sol but im still working on it and dont find myself very good at electrical,lol. i figured id check the fuses and relays first and start off small, but if anyone else has had this problem,let me know!

serious enquires only,no tech-haters please.i come here for your help because im not as experienced as some of you.thank you for your time and concideration.

[evildky]

first thing is to cap every exposed wire, then check all fuses, then check the fusible links, and the battery, that short might have simply fried the battery, if none fo that helps, take otu the stereo harness and replace it, it's a subharness and a pita to wrestle out but sure beats trying to fix every wire

[devz31]

first thing is to cap every exposed wire, then check all fuses, then check the fusible links, and the battery, that short might have simply fried the battery, if none fo that helps, take otu the stereo harness and replace it, it's a subharness and a pita to wrestle out but sure beats trying to fix every wire

ok,ill go cap em right now.i replaced all the fuses under the dash,are there other fuses somewhere on the car?engine bay? were are the fusable links? i got a new batt but havent put it in yet,todays the second day ive had this car back,lol.ill go try and get that harness out.thank you for your help! i need every lil bit i can get.

[evildky]

fusible linkes are inside the little black box in fornt fo the battery, they are basically pieces of wire rated to fail at a given load, if none of them look burtn they are likely fine

[devz31]

suweet,im goin outside to check right now!

[devz31]

ok i checked fusable links,they appeared unburned.i replaced the battery,still the same thing.the cars headlights work also blinkers,tails,pretty much all lights.im not gotting response from fuel pump,starter or ecu.doesnt that mean main relay is bad? i can turn the key all the way and nothing happens,no cranking not even gauge lights.

[devz31]

come on peeps,i thought there were some nissan enthusiests on here.alltho i thank the one guy on here to help out...thanks realy.

anyhoo,i turned my key to ignition and my ecu didnt blink at all so im not gettin power to my ecu,what does this mean?

[Perrenial Badass]

Are you getting power to anything at all? Can you turn on the map light for instance?

Most of the fuseable links are on the passenger's side of the engine bay, in the box that evildky mentioned and a smaller box towards the firewall by the battery. There are a few hidden in the frame where the wiring harness comes through where the battery and CMC are located. I can't remember what fuseable links do what, I would go to the junkyard and grab as many as I can fit in my pocket and try those out, it is possibly one is burnt out without looking like it is.

[devz31]

Are you getting power to anything at all? Can you turn on the map light for instance?

Most of the fuseable links are on the passenger's side of the engine bay, in the box that evildky mentioned and a smaller box towards the firewall by the battery. There are a few hidden in the frame where the wiring harness comes through where the battery and CMC are located. I can't remember what fuseable links do what, I would go to the junkyard and grab as many as I can fit in my pocket and try those out, it is possibly one is burnt out without looking like it is.

thnks for the suggestion.it makes sence,im not getting power to anything,no fuel pump starter or ecu.i can flip my lights up and hazards work as well as floor board lights.im going outside to check it out right now,ill post up wat i find! do u think there is a circuit breaker like in the z32's? maybe that went out?

Modified by devz31 at 3:14 PM 10/7/2009

Modified by devz31 at 3:33 PM 10/7/2009
Modified by devz31 at 3:34 PM 10/7/2009

[Perrenial Badass]

Wiring issues aren't my forte', I've always felt that it's almost easier to make up a new harness than to fix messed up wiring. Or replace it in the case of that subharness. But if you are getting power to the the headlights, but none in the cabin then that helps narrow down what it is. Either a fuseable link or a melted wire somewhere.

Might be a good time to pick up a multimeter and check the resistance of the wires.

[evildky]

could be ignition switch, relay, fuse, wire or something else