HELP!!! VG30e WIRING!! PLEASE HELP

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s13kid87
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Hello everyone here at nico club, i have just bought a 1988 nissan 200sx se v6 it has the vg30e.. the wiring is all hacked up, i just got the lights working today, but i cant get the motor to turn by key????

Now for the problem...im tired of messing with this gay harness and i wanted to know what year maxima or Z31 can i use the harness from to get rid of this hacked BS??? please help and thanks all


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evildky
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the chassis harness is going to be completely different and the start circuit si aprt of the chassis harness, or at least it is on the Z31

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s13kid87
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evildky wrote:the chassis harness is going to be completely different and the start circuit si aprt of the chassis harness, or at least it is on the Z31
i need the top half of the harness, or could i take the whole harness from a z31 and wire up my motor, and electricals with the z31 harness... or how bout, my wire harness is all cut up what should i do?

VG30e s12

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Pulling an entire wiring harness is a lot of work. Much less adapting a different one to work. No luck finding a 88 200SX harness I'm guessing?

If you go through the FSM, Haynes, Chilton, what ever; and verify that the wiring is basically the same to the engine and ECU; you can put one in. I'd think that would be as much of a headache as redoing the chopped wires yourself, though.

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s13kid87
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Perrenial Badass wrote:Pulling an entire wiring harness is a lot of work. Much less adapting a different one to work. No luck finding a 88 200SX harness I'm guessing?

If you go through the FSM, Haynes, Chilton, what ever; and verify that the wiring is basically the same to the engine and ECU; you can put one in. I'd think that would be as much of a headache as redoing the chopped wires yourself, though.
i live in west palm beach florida, and this 200sx is the first one ive seen

my car is fully gutted, like NO dash or anything.. it has a full roll cage, driver seat, full cusco suspension... an the vg..lol

what do you think i should do??? hard wire everything and try and make the harness work?? or swap a full harness, ecu ect. off a z31

thanks

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evildky
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"top half"? what exctly is cut off your harness?

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s13kid87
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evildky wrote:"top half"? what exctly is cut off your harness?
the wiring for the altenator isnt there, then if your standing in front of the car where the harness plugs into the chassis harness, theres two plugs a big one and a smaller one, the smaller one all the wires are cut, i have no clue what there for or where they go..

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evildky
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pic's would help, the alt harness is seperate, I'm about to pull a motor i'll try and get a pic of the alt harness and see if it looks the same

your alt on the divers or passanger side?

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s13kid87
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evildky wrote:pic's would help, the alt harness is seperate, I'm about to pull a motor i'll try and get a pic of the alt harness and see if it looks the same

your alt on the divers or passanger side?
alt harness??? if its the two big plugs i think your talking about then yea its separte) ill take some pics when i get to the car.. its parked at my friends house..

the ecu is on the driver side.. if your faceing the engine standing infront of the car.. theres two big plugs/clips, on the left/passenger side, that is what im guessing plugs into the engine harness, ill take pics today.. and thanks EVILDKY for all your help

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Yea, pics would be a help. I have access to a couple parts cars so if it's a section of the harness I could cut it off and send it to ya.

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s13kid87
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Perrenial Badass wrote:Yea, pics would be a help. I have access to a couple parts cars so if it's a section of the harness I could cut it off and send it to ya.
that would be awsome im gona get pics asap..

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evildky
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on the Z31 all ecu's are on passanger side kickpanle (Z31) and the alt varies, some early n/a's had it ont he drivers side all turbo's and later n/a's had it on the passanger side, which is where mine is

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s13kid87
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these are the plugs that are cut

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s13kid87
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does it matter where the alt is??? doesnt it belong on the left side??

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s13kid87
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HowlerMonkey
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They might go to the transmission for the neutral safety switch if the car has an automatic.......or maybe the body harness for the clutch switch if it is manual transmission.

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evildky
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and your alt is on the wrong side, you'll need the alt harness form an 84-86 n/a iirc, and thats iff the connectirs are right

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s13kid87
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evildky wrote:and your alt is on the wrong side, you'll need the alt harness form an 84-86 n/a iirc, and thats iff the connectirs are right
are the cut wires for the alt harness?? i got the car to crank with the ignition today.. no spark or fuel though.. im getting a coil from the junkyard tomorow.. will a z31 or maxima coil work? and i need to see if the fuel pump is working, i think im gona put the fuel pump to a switch... thanks for everything

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evildky
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the alt has 2 small gauge wires and 2 large gauge wires, so it does nto appear to be the alternator wiring, anything connected tot he actual alternator?

in that side of the z31 you have oil pressure sender, a/c pressure swtch, and low coolant seensor, none of whihc are critical to the engine running

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s13kid87
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cool
evildky wrote:the alt has 2 small gauge wires and 2 large gauge wires, so it does nto appear to be the alternator wiring, anything connected tot he actual alternator?

in that side of the z31 you have oil pressure sender, a/c pressure swtch, and low coolant seensor, none of whihc are critical to the engine running
ok cool.. im puting the new coil on today, some gas and hopefully it will run, all i have left to do hopefully is make sure the fuel pump is working..

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s13kid87
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ok so, i put the new coil on today, put the fuel pump to a switch, change the intake manifold.. and it cranks good but it wont start???? has fuel so im guessing that the spark isnt good..

??????????? is there a way to hard wire the coil to a switch so i know its working???

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evildky
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does the coil have power when cranking? the power to the ecu, injectors and coil all need to be hot when cranking

and the ignitir is a fairly common cause for no spark ont he Z31, it;s the metal bracket with a disk near the coil, if it's bad you won't get any spark

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s13kid87
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so
evildky wrote:does the coil have power when cranking? the power to the ecu, injectors and coil all need to be hot when cranking

and the ignitir is a fairly common cause for no spark ont he Z31, it;s the metal bracket with a disk near the coil, if it's bad you won't get any spark
So, i was going threw the wiring that leads to the ECU today and found a wire that ran under the driver seat... (sigh) so i pull on the wire and it go's from the ECU to nothing, i take my test light and its got no power, i run it to my battery and the car CRANKED right up, i guess they had a kill switch on it.. it runs perfect so far, no hesitation or sputtering and my home made injector harness worked... YYYAAAAYYYY for me

know all i have to do is run the wires for the Alt, get the belts, get a battery and put on my altima fans on..

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Aah, might have been security system related?

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s13kid87
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it s
Perrenial Badass wrote:Aah, might have been security system related?


it sure was..lol

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s13kid87
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evildky wrote:does the coil have power when cranking? the power to the ecu, injectors and coil all need to be hot when cranking

and the ignitir is a fairly common cause for no spark ont he Z31, it;s the metal bracket with a disk near the coil, if it's bad you won't get any spark
hey EVILDKY, would you happen to have a picture of the altenator wireing?? i need to wire up the altenator

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I'll take a pic of the alt wiring on my 87 tomorrow if it will help any. Other side of the engine though the wires are pretty much the same if memory serves.

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s13kid87
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[QUOTE=Perrenial Badass]I'll take a pic of the alt wiring on my 87 tomorrow if it will help any. Other side of the engine though the wires are pretty much the same if memory serves.[/QUOTE\]

thanks.. that would be great

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s13kid87
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s13kid87
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UPDATE:::: the car is running great, everything is working properly, Next is to weld the diff.. thanks EVILDKY and evryone else for the help


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