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?

 

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.

 

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)?

 

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.

 

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

 

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

 

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

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

 

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

 

In the S4 & S5 FSMs.

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

Also links at the top of this forum.

 

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.

 

Those are the page numbers ^^^^^.

 

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