Wiring Help

[18hr]

I've been surfing the board for a little over a year and now I need some assistance. I didn't do enough homework before I started my swap. What I need help with is the wiring. I did the eight steps and I got it to run. Man does it sound killer. Well I'll get to the point can any one with information for wiring a RB25DET into a 91' or any RB25DET scamatics sp?.

Email me!

Thanks Mike

[JonPowell]

Check http://www.meggala.com

Everything you should need is there.

[18hr]

the only thing I can find is this. That maybe of more use but I can't seem to find the ECU pinouts and what they are.

Thanks for the help.

Mike

[JonPowell]

I will send it to you on Monday when I am back at the shop

[Nolimit]

I'm also trying to help Mike here with his swap, ... I know some people re-did the "8 step" instructions, so maybe they are easier to understand. Anybody know?? Any additions? :help

Basically, there are just a few issues needed to take care of before it's complete. We just want to make sure we can get all the "shared" info available.

(and the sooner the better, he's trying to get his car ready for a drift competion this coming weekend!! )

Thanks in Advance~Seán

[vududoc]

go to my old site under the misc section http://www.geocities.com/prluv516/

[Nolimit]

Thanks , ... but I couldn't find anything more on the RB25 on the site. ?Maybe I missed something?

[vududoc]

for that go to megalla for the quick d-load. i have large files if you need them though like the sky's the limit manual and fsms. if you just need the pinouts and other stuff go there.

[kevy8up]

Hey all, Im interested in the same thing. I want an rb25 in my 91. I was hoping anyone could send me the same info. I will prolly be installing it this winter between Nov and Dec. I was thinking of gettin the swap kit from supertuner BUT if anyone really does have wiring updates let me know please.

:ylsuper ROCK ON NISSAN

[email protected]

[18hr]

Well thank for all the help everyone. I got the car running good enough to drive around. Now I need some help with the gauges. Any info as far as color codes for wires would be extreamly helpful. When I'm all done I'll do a wite up for everyone on how to get all the gauges and stuff to work.

FYI...... I have the speedo adapter from Mckinney but it doesn't have very good directions.

Thanks Mike

[JonPowell]

Which gauges are you using...email me and I will help you out. Do you have the RB gauge cluster?

[93semax]

go to my old site under the misc section http://www.geocities.com/prluv516/

Hey you stole the PDF I made :p . No worries. I have the RB25DET Wire diagram if you want it (not the wire schematic)

[krayton]

93semax ill take whatever you got if you dont mind. im attempting to wire the RB25 in an s14. as of now just trying to write it all out. any help is appreciated

[email protected]

[vududoc]

Hey you stole the PDF I made :p . No worries. I have the RB25DET Wire diagram if you want it (not the wire schematic)

thats funny considering these things are all over the place. and i dont remember ever getting if from you. :rolleyes

my band with has been exceeded for the month so e-mail me if you need anything. i know one file i have is over 8mb that covers the entire r31 with silver top rb20. itd be nice to get these things out ftp but i dont use it enough to set up:(

[18hr]

I need the info to hook up the stock speedo, temp and tach. I know the stock tach will be off but I still need toknow the wires.

Thanks for all the help everyone.

Mike

[vududoc]

stock speedo is green and black on the sender to green and black on the first plug on the side of the engine fuse block. I just used the ka lower harness plugs for a cleaner look.

tach is yellow red off ecu(forgot number) to yellow red on dash cluster plug.

temp dunno yet and aint tried

[18hr]

I figured it out.

Oh, temp is blue/black and we change the sensor to the one off the KA.....it works great.

Thanks for everyones help, tommorrow we test drive:)

[FAST-DATSUN]

18hrCall me and we can go over the installation of the box..Sorry about the instriction, but the install is very simple...Mack

[vududoc]

now this is for anyone.......if the temp sensor is changed doesnt it affect the ecu buy putting out a different reading?

[18hr]

I believe the sensor is only for the gauge cluster, I couldn't find that wire on the ECU anywhere.

[Nameless EJ6]

When you guys go over the instructions, will you please post them up on here? I will be doing this too...

[JonPowell]

On the RB25 there are 2 temp sensors, one for the ECU and one for the gauges. I am not sure about any other RB motors though. The ECU sensor has 2 wires and the gauge sensor has one. The are right next to each other on the thermostat housing.

[vududoc]

muahahahahah so the single pigtail was replaced muhahahahah sweet

[vududoc]

you know ya gotta love nissan for simplicity...not like some cars ive worked on where you practically had a whole world of difference between each engine(like another car i own).

[Bryson]

I'm Def. not an expert... but doesn't EVERY engine HAVE to have a temp sensor that sends info to the ECU?(not just gauge cluster) otherwise how would it know how to operate under cold temp.. or when to switch once its warm??

[18hr]

On the RB25 there are 2 temp sensors, one for the ECU and one for the gauges. I am not sure about any other RB motors though. The ECU sensor has 2 wires and the gauge sensor has one. The are right next to each other on the thermostat housing.

This is correct (two sensors). Just replace the one that only has one wire (Blue/Blk) It's in top coolent inlet that is attached to the intake manifold (not the one with the theromstat). With the exact same sensor from the KA motor( has the same Blue/Blk wire)

I hope that explains it more.

Mike

[18hr]

Oh, give me a week or so, we have to retrace all the wiring and write it down. we did a rush job so my car could be done for this weekends Hawaii Drift Championship. Oh and take pictures too.

Mike

[JonPowell]

I apologize, it is the top coolant line. My mistake. It has been so long since I looked at it....Sorry

[vududoc]

yeah people can also use that lower rad hose insert for an aftermarket sensor off the ka aswell. it beats having to re invent the wheel

[18hr]

I apologize, it is the top coolant line. My mistake. It has been so long since I looked at it....Sorry

It's all good, just want to make sure we're passing out good info.

yeah people can also use that lower rad hose insert for an aftermarket sensor off the ka aswell. it beats having to re invent the wheel

Just replacing the RB one with the one from the KA and wiring it takes about 10 minutes. The Blue/blk wire runs to the white RB plug that Opensource talks about in his thread. Then you connect it to the Blue/Blk on the Brown S13 gauge cluster plug that is next to the ECU

Opensource hope you don't mind me borrowing you pics for a little while.

The white RB plug http://azparttrader.com/rbhelp/IMG_2526.JPG

The Brown S13 gauge cluster plug http://azparttrader.com/rbhelp/IMG_2522.JPG

I think thats it, I can't remember if I had to connect it anywhere else. I would just trace that wire all the way and make sure it's doesn't have any disconnects in it. Like I said it only took about 10 mins.

Mike