Before You get started you will need the following items:
Phillips scredriver,
wire strippers/crimpers
10mm wrench/socket
butt connectors

Note: The brown wire, and the three female conecters on the TT harness will not be used in this installation. Tape them off so they do not ground to anything.

http://www.roadraceengineering.com/e...-ecuwiring.htm

heres an ecu diagram for hooking up the speed wire. If you don'twant to mess with your ecu wiring its ok, it reads in KPH anyways.




Here is all the stuff, TT with wiring and TT harness, make sure everything is in good condition before starting.



Note: you may want to disconnect battey, but I like to listen to music while I work so I took the risk and didn't have a problem.

Start by removing the drivers side lower steering wheel column cover and the lower dash piece by the pedals. There are 2 screws on the the bottom holding the lower dash piece and 3 clips that pop off at the top. The steering wheel piece is held on by 3 screws remove them and it should come off in 2 pieces.

Once this is completed you should see this wiring harness:



This harness is a little bit of a pain to get off because the clip to get it off is on the backside. I used a screwdriver to push the clip down while I pulled it off. then you can plug in your TT harness into it, route the wiring where you want to mount your TT.

To ground your TT hook the black wire with the "O" on the end of it to this bolt:


Now on to the parking brake interface wire. Its the purple one BTW, Unscrew these in your center console:


Lift it up from the back and the 2 clips in the front will pop out and you should see this:


hook your purple wire to the wire comming off the E-brake. I removed all the tape around the E-brake for easier installation. I also heat shrinked the conncetion to prevent corrosion/shorting. Throw your center console back on and route the E-Brake wire where your TT is going to be mounted.



I monted mine in the center tray by routing the wire behind everything and cutting a smal hole in the back of it. To remove just unscrew the 2 screws and it will pop off.



I didn't have a dremel so I just used a utillity knife to cut out the hole. Route the wire through connect everything and you should have a working turbo timer. I used double sided sticky tape to mount it in place. I bought 3m, the stick pad that comes with it didn't work well enough for me.

Please PM if you have any questions and I will update this thread. Happy modding!

 

Discuss

HERE

 

Updated!

 

OK.... so I used this for reference since I had gotten a Greddy full auto turbo timer from a buddy of mine who had it in an SRT-4. I color matched all the ones in the column, hooked the black wire to a ground(like shown), and had to make a wire long enough to reach to the E-brake. WHERE the hell does the Brown wire conect too?!?!?

And does it matter which position the "line" switch is in since it doesn't specify in the Greddy online manual?

TIA,

Dan

 

 

So either the Timer is jacked up.... or it's not made for an EVO. (although that shouldn't matter)

I can scroll through all the functions, I can set time in auto and normal mode, but it doesnt count down OR keep time. The only mode i have found that works right is the battery voltage mode.

 

Great job and nice pics

 

is the wire for the emergency brake properly connected?? make sure you use a multimeter on the continuity setting to make sure your getting good ground contact to that wire. you say you can set the time in manual mode, did you set it for 30 seconds and see what it does when you turn the car off?? does the unit just shut down?? if thats the case, then it sounds like the ground to the emergency cable wire isnt contacting or you reversed the wires possibly.