Rb25det pin-out problems/nistune

[supersayianjim]

so iam in a bit of a rut people. previously i installed the consult plug for my rb20det. it was a breeze of an install and it did what is was supposted to do. now apparently it's not so easy and the damn computer won't connect with the nistune ecu.

so iam hoping you guys can help me out here.

heres the diagram i used for my previous install. it's from the fsm. and apparently it dosen't have the rb25det pinout
(just the de-non turbo one).

so one has to assume that the 20-25 are the same right??











whats weird is on the diagram pin 55 has no use. but on my actuall harness power goes there??? so i got that for my 12v source.


heres my tx splice.





and heres my rx splice






and my clk splice






for the guys who are more visiual. my splices are as follows.


tx=red wire. with white stripe

rx=yellow wire with red stripe

clk=brown wire,yellow strips

12v=55 pin.




so when i try to connect the nistune to my ecu i get a momentarly blink from the rx light. but no connection





so guys do i have this wired wrong?? is the rb25 pinout plug funky, or am i just screwed???

i updated the drivers on my laptop(apparently).


HELP GUYS!!!

[Skym]

If just plug Nistune compatible USB cable into laptop and click on connect in Nistune tuning software, the green light (from memory) should blink to say that drivers were installed correctly. If green light is just blinking, as in the test for USB cable drivers, it's probably not connecting to ECU on car. So once you know that, then it's obviously in the wiring to ECU plug where the problem is.

My advice would be to buy translated R32 engine, R33 workshop manuals (translated from manuals that Nissan Mechanics use) and look at the pinout diagrams in the back of both manuals -

http://www.jpnz.co.nz/afawcs0131170/CATID=24/SUBID=273/page=1/products.html

From what I can remember (having a look at back of a engine manual), those diagrams mention colour of wires in ECU plug, etc, so fairly easy to figure it out once you know the direction of pinouts (colour of wires) on ECU plug.

[supersayianjim]

^^do you have one of these books?? i just need the r33 ecu pinout then.

[Skym]

No.

For R33 ECU pinout, try this website (look under "Diagrams" and click on "Engine/ECU") -

http://www.paulr33.com/