stophie

iTrader: (-1)

so, now i need to know about the differences between wire harnesses and ecu physical differences of the s4 and s5 t2 and the n/a's.

i've searched (maybe not hard enough) for this info on rotaryressurrection.com, and about 200 pages of archive and new member tech.

WHAT DO I DO?!?!

is there a certain number (ie: n448) or whatever it may be, that i need to attain for my s5 t2 swap?

will my s5 n/a wire harness do the job with the added knock sensor wire?

will the plug at the ecu side mate with the turbo ecu?

are the pin-outs the same?

can i use an s4 turbo ecu on the s5 t2?

Aaron Cake

iTrader: (1)

You'll find the wiring diagrams and FSM in the 2nd gen FAQ.

There is little in common between the S4 and S5 engine electrical system.

stophie

iTrader: (-1)

ok, so is the n370 ecu just the turbo ecu? or is it something special? the n/a i pullled out of my s5 is a n351. will that engine harness plug into the n370 (plus the extra wires)?

RotaryRocket88

iTrader: (7)

Yes, N370 is a S5 turbo ECU. S5 NA and turbo engine management harnesses & front harnesses will plug into any of the S5 ECUs, but the pin outs will be slightly different.

Consult the series 5 wiring diagrams and FSM for the differences. It's basically 2 wires that are used differently. Simple stuff.

stophie

iTrader: (-1)

there we go! thanks rocket! i've got the fsm saved at home, i'll check those out.

stophie

iTrader: (-1)

ok, so i've searched the fsm, front to back. no pin out diagrams. where do i find the ecu pinouts?

RotaryRocket88

iTrader: (7)

S4 NA: Fuel & Emissions 4A-30
S4 Turbo: Fuel & Emissions 4B-30

S5 NA: Fuel & Emissions F1-70
S5 Turbo: Fuel & Emissions F2-77

stophie

iTrader: (-1)

sweet, now where can I find that info? thanks, rocket!!

RotaryRocket88

iTrader: (7)

In the S4 & S5 FSMs.

http://www.rotaryheads.com/PDF/2nd_gen/index.html

Also links at the top of this forum.

stophie

iTrader: (-1)

yeah, so maybe i didn't search hard enough in those, but i couldn't find them. i'll take another look at home, i have them saved.

RotaryRocket88

iTrader: (7)

Those are the page numbers ^^^^^.

stophie

iTrader: (-1)

oh...... i was thinkin those were pin out locations or somethin.. stupid me... thanks, rocket. maybe someday i'll be fast like you. lol