Using S5 non-turbo harness as S5 TII harness

[FerociousP]

I remember seeing a write-up on what to change/add (possibly on the evil forum) but I can't seem to find it. I've been running a S5/ na harness as a TII harnes with no emissions, but I am about to get a motor that has emissions still intact and I figured I might as well leave it since I have to pass smog. What modifications need to be done to the n/a harness to have it handle a full TII system? (I can de-pin or solder or anything needed).

Someone feel free to make a FAQ on this as it will save people mula.

[djmtsu]

You can do it!

[FerociousP]

bueler? bueler?

[RETed]

I've done this a LONG time ago...
Basically it's plug-n-play.
Don't worry about the boost solenoid, since this ends up being either the VDI or some extra (emissions?) solenoid on the NA harness...
No need to repin.


-Ted

[sen2two]

i have it on my car. its simple. just plug everything in. no modification to get it running. but mine does not have emissions, so im not to sure there.

[FerociousP]

sen2two, that's what I did with my other car, which has no emissions... IIRC Lander's blue car is using a n/a harness with full emissions..


Ted,

Will the colors on the connector match up or will I need a wiring diagram? I guess I can do the research myself... but what I needed to know is if I needed to start looking for a Turbo harness or not since the motor is going in the car on the 11th.

Thanks for the info.

[Whizbang]

the differences involved should be simple enough that just using an NA harness should get things done. Just a little more of your time.

[RETed]

The colors of the connectors should be the same...
The extra should be the VDI (tan or gray or something like that).


-Ted

[Max777]

what about the S5 turbo knock sensor? I thought that the turbo models have this, but the N/A does not?

Is there an unused connector on the N/A harness that plugs in to it?

[FerociousP]

from what I've been told the knock sensor will not compensate fast enough to be of any use and to not worry about hooking it up. My 6-port turbo with n/a harness (no emissions) ran that way fine. (until low oil pressure)

[RETed]

Stock knock sensor can be thrown away.
The stock ECU ignores it after 4kRPM.
You can verify this with the FSM.


-Ted

[Max777]

Ah, very valuable piece of info to know!

[fire85gslse]

You can do it!

All night long.........

[Flooder]

So seeing that you can use an S5 na harness as an s5 TII harness, is it possible to run an S4 TII motor on an S5 TII ecu/s5 na harness?

[fire85gslse]

So seeing that you can use an S5 na harness as an s5 TII harness, is it possible to run an S4 TII motor on an S5 TII ecu/s5 na harness?

Yes, if your sing just the S4 TII block with all the S5 accessories.
Chad