sr20det wiring questions!!!! z32 maf help too!

[rhdsilvi85]

ok so my nightmare from hell is getting better but always leads to another headache.. so I ordered a jdm wiring harness for my rhd silvia and come to find out the kid before me spliced different injector plugs onto the old wire harness (the gray ones) the new ones are (black) does anyone know what the gray ones came off of or how I could find out? any help would be greatly appreciated..
http://i20.photobucket.com/albums/b214/Eurorider1/IMG_20130528_155603_690_zpsea793cf6.jpg (http://s20.photobucket.com/user/Eurorider1/media/IMG_20130528_155603_690_zpsea793cf6.jpg.html)

also with the z32 maf I'm having to re solder the wires to where the old sr20 was.. the harness has 3 wires the z32 has 4.. I was reading the two blacks can go together then the small white one goes to the black and white strip on the harness and the big white goes to the white one on the harness? can anyone verfy this? please thank you!!!! also the orange one isn't used from what I saw...
http://i20.photobucket.com/albums/b214/Eurorider1/IMG_20130528_140607_546_zpsffce50c8.jpg (http://s20.photobucket.com/user/Eurorider1/media/IMG_20130528_140607_546_zpsffce50c8.jpg.html)
http://i20.photobucket.com/albums/b214/Eurorider1/IMG_20130528_140631_943_zps283071a7.jpg (http://s20.photobucket.com/user/Eurorider1/media/IMG_20130528_140631_943_zps283071a7.jpg.html)

[KoukiMonsta]

I am guessing*** the gray injector plug is for denso style injectors. Lil googling will show you some on that.

Ad for the maf there's a few good write ups out there. Srry my brains a bit fuzzy..done this enough times I should know it.

On the harness end you have power, ground, and signal. Blk/why, blk, and white respectively. On the plug end z32 has an extra ground. I belive**(of the top of my head) center 2 are combined for ground. You only need 4 of the wires... Then besides from d u have a power and signal.

Ill get back here later if nobody chimes in to correct me. Hope this helps a little.

[rhdsilvi85]

your a life saver bro I was sick cuz I didn't know what injectors those were they are denso I just looked it up... as for the maf I think I did it right based off what I found on the net.. not sure about the orange wire tho some people said its not used some say ground to chassis what do you think?

[rhdsilvi85]

also do you see the pic if the maf wiring... do you see the black wire in background with white/yellow plug on it.. do you know what that ggoes too? my last one didn't have that and when I installed the new one to realize the plugs were wrong I noticed that didn't have a place to go..

[KoukiMonsta]

I think the orange is a 'shielding' wire.

As for the black with plug, a single wire plug goes to oil pressure, water temp. And some things u don't need. Like thermister...