Wiring troubles

Nissan 300ZX technical discussion forum: Maintenance, performance, installations, modifications, how-to's and troubleshooting.
Moccia
Posts: 3
Joined: Tue Aug 03, 2010 10:23 am
Car: 1991 300zx n/a

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This is my first post in this forum, it seemed very knowledgeable so I figured I would try it out :p
Anyway, I recently replaced my injectors/EGR removal/Water jacket bypass/ect. While replacing my injectors all of the plugs had broken, so I bought 6 new injector wires off courtesy and took the wiring harness partially apart to cut the old injector plugs off and replace them with new ones. In doing this I forgot to label which injector plug when to which cylinder, also not labeling which coil pack went to which cylinder, I have checked around for diagrams showing which colors went to which cylinders but I am having no luck. If anyone has made this mistake and maybe has the correct colors written down or a way I can tell which one goes where it would be much appreciated. I have tried using length to decide where they go, but some are the same length and I do not want to get the order messed up.
Thanks for the help!


Moccia
Posts: 3
Joined: Tue Aug 03, 2010 10:23 am
Car: 1991 300zx n/a

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Anyone? :/ there has to be a way to figure this out, if I just had the correct colors I could figure it out...

Re037
Posts: 333
Joined: Thu Aug 05, 2004 6:20 pm
Car: 1992 300zx 2+2 NA

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shoudl be in the fsm, not sure which section tho for under hood wiring diagram

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skypad
Posts: 289
Joined: Mon Jun 04, 2007 10:21 am
Car: 91' Twin Turbo 300zx 5spd
93' N/a 300zx 5spd
93' 240sx 5spd

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I have mine all exposed and am in the process of replacing mine as well, I will take a look for ya and write down the colors for each cylenders injector/coil pack..mind you I have a 91 TT so it may be diff I don't know for sure. As well as another problem I see is that some wires are the same color O.o Also can you tell me if one wire was a larger gauge than the other on the injector harness wires?

Moccia
Posts: 3
Joined: Tue Aug 03, 2010 10:23 am
Car: 1991 300zx n/a

Post

Alright today I drove around for a few hours today and looked for a 300zx, found one at a shop and the guy let me look under the hood and write it all down, so if you need any of the colors or anything let me know, im going to try and piece them all together tomorrow and hopefully get my car running again! And yes, the gnd(ground) on the injectors are smaller than the positive, If im not mistaken the positive is 14/16gauge and the gnd is 18/20 gauge.

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Ba11erz
Posts: 68
Joined: Fri Jan 02, 2009 9:39 pm
Car: 90' 300ZXtt
Stage IX
502RWHP 93 pump (May 2011 Tune by SZ)
VH45DE Swap in progress
Location: Fort Meade

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Just read the thread and decided to chime in. This may be helpful:

Image
(source: http://www.ztechz.net/id9.html)


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