jeff48

Most of you know of my engine problems. I am now cleaning up the remains of the unused hosing and wiring. I have possibly pulled a few wires and hoses off their attachments points and have either forgotten where they go or can't find the references in the manuals. To make matters worse, I may have a 93 wiring harness with wiring connectors for things that don't exist in a 94.

Starting here and now I am going to be posting a few pictures and diagrams asking for assistance.

Either this nipple had something pulled from it or it never was connected after the single swap. I am unsure as to what it is and what should be connected.

Please help identify it

jeff48

OK.
Here is a hose problem. One end connects somewhere under the Fuel rail and either to the LIM or somewhere on the block. The other end was loose when I removed the UIM. Can someone please identify the hose and where the loose end gets connected?

jeff48

Here is the last set of problems and it involves which of these connectors to delete.
I am not certain that any of these are useful but I am looking for confirmation and ideas.

The yellow ones are the big questions. The reds have all been deleted. I think the greens are all keepers.
If I have mislabeled anything please also let me know

Snook

iTrader: (12)

part 1
that is one of the 2 oil injectors from that get oil from the oil metering pump. the other one is on the other side of the primary fuel rail. you need to get a T on those and then run 1 line to your intake. that means you must have an intake on your single turbo consisting of more than a filter where you can put a nipple on it.

part 2
that needs to go to the turbo-intercooler pipe. make a nipple and put it on there

part 3 looks good
if you have an aftermarket rail that doesnt need the fuel temp sensor then you can get rid of that too. I can look later and see if you missed any that you need to keep but it looks good so far. under the uim you should have the air sensor, idle speed control and tps on the throttle body. keep the purge solenoid thats the only one you need. those yellow in the front may be for the wastegate/precontrol solenoids and the turbo control solenoids near the front of the uim not on the rats nest.

let me know if you have any more specific questions
yanni

twokrx7

iTrader: (1)

You are kidding, right? Time to pick up an owner's manual.

Hope the following helps ...

pic 1 is the oil injector for the front rotor, there's another just like it on the rear. Some tube it up to the suction of the turbo and others run em open, your call.

pic 2 is either a coolant line (trace it down and it should be obvious) or the air line between the LIM and the turbo discharge, my car has had all this stuff removed for years and I'm too lazy to look in the manual.

pic 3, kill everything that doesn't plug into a sensor or actuator you don't want to reinstall. 1-2-3 are aire control valve but cannot remember if it only needed 2. 5 is for the air pump. 10 is the AWS solenoid, kill it. Of 7-8-9, two are boost control, not sure about the third.

That's all the memory I have of these, good luck.

Howard Coleman

iTrader: (6)

jeff,

i did an A to Z on my wiring last year and made a list of all the plugs w their function and whether or not they should be retained. i took a look at your diagram (part 3) and can't help you too much referencing it...

if you can give me the color codes of the wires into each connector and the number of connections i can probably help you.

as to the water hose... i think it connects to the UIM. i removed, and recommend you remove it. also, plug the other water hose boss near the front of the motor and don't run water heat to your UIM.

let me hear from you as to the wiring.

it is the least i can do for your very helpful EGT wiring contribution to the forum. i am building one for each of my two T04s.

howard coleman

jeff48

Thanks to everyone so far. I am open to all suggestions and ideas. Like I said, the manual is lacking in details on some of these. I am using all full size OEM manuals for the 1994 including the Z section for Wiring Diagrams. One problem is that one of the 7, 8, and 9 group is a blue colored connector which according to the Z section for the 93 model (from iluvmyrx7.com) is supposed to be for a California emissions connector which the 94 doesn;t have. Just to make my life more confusing than it already is, my 94 was built late in 93 and I may actually have a 93 harness.

Howard, I am planning on completing the wiring colors tonight. That is how I confirmed most of the green colored connectors so far but I had a problem finding the rest in the Wiring Diagram to confirm the colors. I will post the colors tonite or tomorrow. I am glad to hear you are installing the EGT system, I can't wait to hear how the "twins" work out for you.

Snook

iTrader: (12)

you arent mr mazda yourself quit riding the guys ***** 0
we dont have coolant running in the lower intake manifold or upper intake manifold ever

jeff the fire of your last car makes me SICK wow thats weird

shawnk

Is there a link to the infamous jeff48 EGT wiring contribution? I am hooking up my egt this weekend and I want to make sure I am not missing any critical info.

twokrx7

iTrader: (1)

SurgeMonster,

I'm not on anyone, I'm just trying to poke a bit of fun.

BTW, there is coolant plumbed to the TB but you are right it's not in that local, thanks for clearing that up. You must have posted your feedback while I was typing my response otherwise I would not have posted my bs answer after your direct answer.

Good luck with that clean up job jeff48

jeff48

The EGT wiring "contribution" is not a standard EGT install so it will not be of significant help. It involves making an EGT datalogging device based on using a standard K-type thermocouple. Here is a link to the thread.

https://www.rx7club.com/showthread.p...&highlight=egt

jeff48

For the record, I didn't take it as a "do a search" or "Buy a manual" but that's just because we go back a long way. So no offense taken.

I mentioned in my first and following posts that I had reviewed all the manuals so that newbies knew that even us oldtimers live by the "research first" mantra we sing.

Thanks for the input. BTW a much closer inspection of the hose showed that it does come out of the LIM and, according to my best guess about what the manual shows, it would appear that it is supposed to attach to the metal distribution tubing that has been removed.

"Surge", you said it was to connect to the turbo/intercooler piping, do you know if it was a direct connect or through the aluminum distribution tubing. In any event, it sounds to me like I will have a huge vacuum and boost leak until I can find out whether I need to plug it or extend it somewhere.


To all:

I have finally gotten the wiring colors and identified most of the connectors. I will photoshop the results for your comments and confirmation later today. I am going to identify each connector by a number, a name, a Section Z reference # and wiring color. I will color code the connectors as green (keepers) and red (deleters?) for a single set up. If we get enough input on the drawing it may help others in the future.


Jeff

Snook

iTrader: (12)

Im not really mad either just screwing around

jeff its quite clear to me that this hose needs to go to a boost source. it goes to the y pipe for the twins so you'de need to put it on your intercooler pipe from the turbo

http://plaza.ufl.edu/yanni25/vacuum_hose_diagram2.JPG

most people on the forum just cap it though because who needs that right??

Also this is something to keep in mind. you need another nipple on your intake for the oil feed line tube. the diagram doesnt show where that line goes but its the one thats coming off of the feed line pointing down.

jeff48

OK here is the "final" wiring diagram. As you can see I have "identified" many of the connectors. I would appreciate everyone's input before I put the knife to the harness. Thanks