OK, Im ready to continue with my turboII swap. Here's the situation.

this is what I got...
88 Se N/a
JDM S5 t2
S4 t2 ecu (n332)
S4 t2 MAF sensor
S4 t2 throtle Body with TPS
S4 t2 MAP sensor
S4 t2 Fuel pump
Emissions removed
Blocked OMP, BAC, ACV

This is what I found out while searching..
I can use the high Impedance injectors with the n332 ecu. My car has no resistor box.
Im going to use my n/a wiring harness but I think that I will need to extend the tps wiring.

This is what Im concerned with...

I've read that I have to mod the wiring harness at the ecu for knock and power steering switch or something like that-->What exactly do I need to do?

Is there anything that I should be concerned about with the stuff that I have?, since Im ready to put everything together,

What about the rest of the wiring as far as the harness thats on the drivers side, will everything else just be splicing the correct wires?

thanks in advaced.

 

Wire the block up with all S4 accessories and wire it up like an S4. Doing a wiring swap from S4 to S5 requires a whole lot more then just the tps, knock and power steering. Almost every wire is different between S4s and S5s.

 

^ what he said. and find some s4 turbo injectors.

 

your in for a big project, the series swap is a bitch, not so much putting the parts on, but the wiring is a huge bitch. you also need an s4 front cover and a new line for the oil drain back tube.

 

i also used s5 turbo injectors and bypassed the solenoid resistor package

 

This is what Im doing but without bypassing the resistor box since my car is not equiped with one.

 

He's got all the S4 electronics necessary to make this just like a S4 NA -> S4 TII swap, with the exception of the S5 keg and manifolds. It sounds like he's already figured out that trying to wire in S5 electronics would be a big mistake.

Yeah, getting some S4 550cc injectors will make them plug-n-play with the S4 NA EM harness.

You will also need to determine what impedence they are, and if they're low, wire in 6-10ohm, 10-20W resistors. Your car's an 88, and the lack of resistor pack means it's meant to use high impedence, which you already seem to realize.

He's not doing the difficult version of the swap, just the keg and manifolds, while the electronics stay S4. The front cover does not need to be swapped since he already blocked off the OMP, and will be using the S5 turbo. The front cover only gets swapped if the mechanical S4 OMP needs to be used, and in this case he'll be premixing instead.

So, to sum it up, it looks like you're pretty much got all you'll need together. You just need to modify the S4 NA EM harness by cutting the wire at pin 1R and extending the TPS wires. If you decide to use the S5 turbo injectors, you will need to buy some oval injector pigtails. The S4 harness will have rectangular plugs. The only other thing I can think to add is that you can go ahead and toss the air supply valve (ASV) as well, since there is no plug for it on the S4 NA harness. I can't tell the difference without mine, but you might with no BAC.

 

^^Thanks for the feedbak, this is exactly how im looking at it right now, I do have the oval injector pigtails. Nice to see that im to right track.

 

I was doing the wiring part and everything was going well until I saw that I need to add a wire to the alternator circuit but I got that figured out. also i got this question about the Crank Angle Sensor.
Which is the connector on the EM Harness to wire it to the CAS?, Since I wasn't the one who took the n/a engine out I dont know what went were. Im thinking that the S4 CAS uses two connectors instead of one since theres two connectors lying by the CAS. If thats the case do I just splice them to the s5 connector??

 

The CAS connector isn't on the EM harness; it's on the Engine (E) harness. It then connects to the front harness, which plugs into the ECU.

The wire colors are G, L, R, W, and it'll have a white, oval plug. See S4 FSM page 50-22.

The corresponding wires on the S5 CAS are the same colors (S5 FSM pg. Z-36), but two of them (R & G) merge together and connect to one pin on the S5 ECU. I don't know if you can just run it like an S4 CAS.

I think I swapped out the S5 CAS when I ran an S5 block in my '87 TII, but they may be the same thing.

 

^^gotcha I found the connector E-08 it was lying under the body next to the starter and trans connectors. got it now and it pluged in right in place, now Im assuming that the black wire that is next to that connector is for the alternator B+ terminal right? its a black wire but its not that thick and the terminal isnt big enough to go with the alternator B+ post. It seems that it'll go with the s4alternator b+ post since its smaller.