Mayhem85

hey i have a complete standard tt 20b front cut which I am building into my fd3s but am having trouble with the wiring so I can not start the engine.

http://img25.imageshack.us/i/03042010003.mp4/

http://img249.imageshack.us/i/05042010004.mp4/

Mayhem85

can i use stock fd wiring harness or the cosmo harness ?
i dont know what to do but if somebody have the wiring diagram in english for the 20b it will help a lot or can tel me what to do thanks

hwnd

iTrader: (4)

What specifically do you need help with in terms of wiring?

Give a little more detail in terms of what ECU you're using, etc etc.

If you kept the 20B engine harness then you could get as simple as running an AEM for a PNP option (you'd need to swap a few pins around).

Mayhem85

can i use all the FDs fuse boxes or do i need to swap it all with the cosmos fuse boxes and wiring.
its all standart and its all there stock ecu, ignition, wiring etc etc i just want to run it in my FD as a stock 20B Twin Turbo

j9fd3s

iTrader: (3)

the FD and cosmo have different pinouts on the ecu plug(s) that go into the body wiring harness.

basically with the stock 20b ecu, you need a portion of the cosmo dash and body wiring. the easy way would have been to get it running with no error codes (a half cut will have a limp home error code), and see what you can eliminate from the cosmo harness to put in the FD.

the car was never exported from japan, so there are no factory manuals in anything but japanese.

we put a 20b into a b2600 truck, so it needed a couple of fuseboxes from the cosmo, but i suspect the FD and cosmo actually have similar ones, give or take

Mayhem85

oka i then need the japanese wiring diagram can somebody send it to my mail ? thanks.
furious-imports@hotmail.com

Fsmotorsport

Does anyone know the pinouts from the engine loom to the body loom of the 20B?
I too will be using a stock 20B and management system in my FD and need to know what wires to connect to my FD loom.
Thanks
Chris

Mayhem85

got it all working
stock cosmo wiring + ecu for only the engine
apexi power fc + fd wiring for the fd elektronik
now i only need the pipes fixt
testing:

video 1: http://tinypic.com/player.php?v=2dbm269&s=4
video 2: http://tinypic.com/player.php?v=2n69bw0&s=4
video 3: http://tinypic.com/player.php?v=2j2aupx&s=4

Mayhem85

video: http://tinypic.com/player.php?v=2u5xrar&s=4

Fsmotorsport

Looking good.
So how and why are you using the stock ecu and the power fc.
What pins on the stock ecu did you connect to the FD's wiring?
Thanks
Chris

87GTR

iTrader: (61)

yeah how did you use the stock ecu + a power FC?

Fsmotorsport

What did you have to connect to the stock ecu from the car to get it running with no fault codes.
Chris

twilapede

iTrader: (2)

i would also like to know how you got this to work with the stock ecu, and the power fc? This has me quite interested, to the point that I may attempt it one day.

Socamoto

+1 .

Please share how you did the electronics. I would love to do the same myself

Fsmotorsport

Do you have the ecu pin out descriptions in english?
Chris

jacoolv6

Did you use a new subframe or stock fd subframe?

Mayhem85

Hmm i cant remember but i think i used the stock 20B wiringharness + the 13B wiringharness, my stock twin turbos needed a rebuild so i desided to go single. >But i remeber it ran perfekt with no faults.

Mayhem85

found some old videos with the stock twins and power fc
http://tinypic.com/player.php?v=28auy42&s=7

Socamoto

Looks great!

Any chance of sharing how you did the wiring exactly please?

A guide of sorts would be great! I'ts the only thing putting me off doing a swap.

RotaryEvolution

iTrader: (30)

inquiring minds want to know how you ran 6 injectors and coils from an ECU designed to run 4 injectors/coils, with a third rotor phased completely different.

hwnd

iTrader: (4)

Dude, I'm not buying it.
you wired a silly pfc in and did what with the other injectors and coils?

ARMAN

DUDE share your secrets. I need to know how you did this.

Mayhem85

the stock 20B ecu ran the engine/ignition/fuel. and the pfc only ran the FD gages like oil/speed/water and so on.

twilapede

iTrader: (2)

I agree, you should do a detailed write up!!

Mayhem85

i have gone Single so i cant remember it all. (you can click on my name an see engine picture)
But you need to get a frontcut that will start the engine, an you can then show me the wires from one of the white plugs where the ECU is an i can tell you what plugs you need and what you dont need