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 harness and ecu

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Barnett87GXL Posted - Oct 23 2010 : 10:25:54 PM
So i've been doing research and have been getting mixed information on the ecu and harness.

I would like to know if it is possible of use the TII ecu and harness on my s4 turbo/na with TII manifolds and sensors?
If so, will all the connectors on the harness inside the car connect and work with the stock N/A connectors?
Ex. the two yellow/orange connectors.
7   L A T E S T    R E P L I E S    (Newest First)
Aaron Cake Posted - Dec 12 2010 : 10:42:34 AM
I have to stretch my memory here becuase it has been a long time, but I'm fairly certain that if you stay within your series, than there isn't much of a change needed betwen the harnesses to make them plug in. For one thing, I don't believe that the emissions harness (EM) connects to the front harness at all. The engine harness connects to the front harness and I think the only differences is the alternator wiring I have mentioned.

Almost all the swaps I have done are full standalones.
NMB123 Posted - Dec 07 2010 : 10:22:32 PM
I've been looking in to doing the same set-up and i've heard from a lot of people that it is easier to the N/A harness because the connection between the TII EMS harness and Front harness require some re-pinning for them to work together, is this true?
Aaron Cake Posted - Dec 05 2010 : 5:05:32 PM
Easier to use the TII harness if you already have one. But both require a few changes to be made.
Barnett87GXL Posted - Dec 05 2010 : 3:28:40 PM
So in ur opinion what harness do u think would be easier to use, TII or N/A?

I have both harness and am just weighing the pros and cons of using either of them.
Aaron Cake Posted - Dec 04 2010 : 10:20:27 AM
There are a few minor differences. On the TII, the alternator wiring is on the engine harness, on the NA, it is on the emissions harness. So you need to be aware of that and add wires as necessary. Also, the TII emissions harness has wires for the twin scroll and knock sensor.
Barnett87GXL Posted - Dec 01 2010 : 8:01:29 PM
Thanks, I had just heard that it caused problems with the dash harness working right.
Aaron Cake Posted - Oct 24 2010 : 11:00:05 AM
Yes. As long as it is from the same series.

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