Turning a S5 NA harness into a S5 Turbo II harness...
10-25-05, 03:52 PM
#1
Turning a S5 NA harness into a S5 Turbo II harness...
Well I have yet again another project. I am helping a forum memeber on quite the deadline convert his S5 NA to a full TII, drivetrain, suspension, and vmount. We cant source a TII wiring harness (but have S5 TII ecu's 
) so I figured after doing my microtech, this cant be that hard. After compairing the FSM F&EC section I have found only 5 pins that do not match up.
NA:
1U- A/T switch- A/T automatic tranny 0v
M/T manual tranny 12v
2M- Solenoid Valve- (Variable Dynamic effect intake control)
3J- Solenoid Valce (Accelerated warm up system)
3N- EC-AT control unit
3R- 6 port induction system
TII:
1U- Miliage Sensor No. 2
2M- Knock Sensor
3J- Solenoid Valve (Accelerated warm up system and air supply valve)
3N- NONE
3R- Duty colenoid (Boost pressure control)
Now my questions/solutions.
1U we are using the stock TII tranny, can I just clip this from the harness connector at the ECU? There is no ACV, hence no Miliage sensor.
2M- This is the only one I am worried about- what can I do for the knock sensor?
3J- There will be no AWS but what about this ASV? I assume its one of the solinoids on the rack, which we will not be using.
3N-Clip the wire at the ecu?
3R- We are using a aftermarket boost controller. Clip the wire at the ecu?
Well any input is welcome. The s5 na harness I am using has 60k of NO abuse and is absolutly beautiful.
) so I figured after doing my microtech, this cant be that hard. After compairing the FSM F&EC section I have found only 5 pins that do not match up.NA:
1U- A/T switch- A/T automatic tranny 0v
M/T manual tranny 12v
2M- Solenoid Valve- (Variable Dynamic effect intake control)
3J- Solenoid Valce (Accelerated warm up system)
3N- EC-AT control unit
3R- 6 port induction system
TII:
1U- Miliage Sensor No. 2
2M- Knock Sensor
3J- Solenoid Valve (Accelerated warm up system and air supply valve)
3N- NONE
3R- Duty colenoid (Boost pressure control)
Now my questions/solutions.
1U we are using the stock TII tranny, can I just clip this from the harness connector at the ECU? There is no ACV, hence no Miliage sensor.
2M- This is the only one I am worried about- what can I do for the knock sensor?
3J- There will be no AWS but what about this ASV? I assume its one of the solinoids on the rack, which we will not be using.
3N-Clip the wire at the ecu?
3R- We are using a aftermarket boost controller. Clip the wire at the ecu?
Well any input is welcome. The s5 na harness I am using has 60k of NO abuse and is absolutly beautiful.
10-25-05, 06:25 PM
#4
HAILERS
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Leave 1U alone. EDIT: I thought about this for a moment. Tell you what, why not just depin that wire from the harness and wrap it with shrink tubing? It takes a small jewlers common screw driver inserted in the mating side of the connector to shove down on a piece of plastic that holds the wire in. Shove the plastic down and pull the wire out. I'm just too lazy to look and see what happens if you leave it in place. I'd bet ten bucks nothing.
2M...find the VDI solenoid plug and remove the wire that is NOT black/white. Splice the wire from the knock sensor to it. Done.
3J does the same thing on both engines.
3N. do nothing.
3R....make the wires from the Six port solenoid reach the Duty Control Solenoid. Done
3R again....well you could just leave the plug alone not connected to anything and use the aftermarket unit. You don't have to cut any of the wires mentioned in your post.
2M...find the VDI solenoid plug and remove the wire that is NOT black/white. Splice the wire from the knock sensor to it. Done.
3J does the same thing on both engines.
3N. do nothing.
3R....make the wires from the Six port solenoid reach the Duty Control Solenoid. Done
3R again....well you could just leave the plug alone not connected to anything and use the aftermarket unit. You don't have to cut any of the wires mentioned in your post.
Last edited by HAILERS; 10-25-05 at 06:31 PM.
12-11-05, 09:41 PM
#6
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Sorry to bring this back from the dead. Looks like a really good thread. Im in the process of finding all good threads to help me convert my s5 n/a to TII. Just wanted to varify all the info in this thread regarding rewiring of the n/a harness to TII is accurate and correct. Also that these pinouts are the only ones that need to be addressed and that non were forgotten.
Thank You
Thank You
Last edited by driftin8ez; 12-11-05 at 09:44 PM.
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12-11-05, 10:48 PM
#9
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You might take a look at two plugs called FEM-01 and FEM-02 that connect from the emissions harness to the front harness. There is a *problem* on series four na to turbo with those two plugs. Not a big problem, but a problem. On a series four it has to do with the boost sensor output going somewhere it should never go.
On a series five...........got me. No series five wiring diagram here.
On a series five...........got me. No series five wiring diagram here.
12-11-05, 11:26 PM
#11
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OOps. This is using a na in a turbo series five. So those FEM-01 and FEM-02 don't apply. The series five uses different monikers for those emission to front harness plugs. They called them X-10 and X-11, X-08, X-09 and are shown in the last ten pages of the downloaded fsm wiring diagrams for a series five. If using the same na harness they are not as important as if you were putting a series five trubo emission harness in a non turbo car and keeping the na front harness.
The series five wiring diagrams are available on this site. Do a search for WIRING DIAGRAMS and you'll find it. Then download and PRINT it. Plus save to disk.
The series five wiring diagrams are available on this site. Do a search for WIRING DIAGRAMS and you'll find it. Then download and PRINT it. Plus save to disk.
12-12-05, 07:22 AM
#13
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It should work pretty easily.
The major difference are the VDI on the NA side and the turbo boost solenoid on the turbo side.
If you're running a big exhaust, you can just bypass the turbo boost solenoid anyways.
Everything else is plug-n-play and works fine.
-Ted
The major difference are the VDI on the NA side and the turbo boost solenoid on the turbo side.
If you're running a big exhaust, you can just bypass the turbo boost solenoid anyways.
Everything else is plug-n-play and works fine.
-Ted
12-12-05, 08:23 AM
#14
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Originally Posted by driftin8ez
so are you saying that it shouldn't be a problem on my application. S5 N/A to TII harness.
Last edited by HAILERS; 12-12-05 at 08:25 AM.
12-12-05, 10:30 AM
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ya i read and understood everything. Just wanted to make sure that everything was covered and that the info was correct. Thats all.
thanx for the help. Deff. going in my favorites for when i do the swap.
thanx for the help. Deff. going in my favorites for when i do the swap.
