Boost control problem

[Joni]

Hi, I have -91 jza70R and I´m installing apex avc-d boost controller.
I need to find speed sensor wire, but I don´t have it in my ecu harness.
I use this diagram and there´s no wire in pin number T-8:
http://media.photobucket.com/image/jza70 ecu pinout/BigTSetter/MKIV ECU/1jzecu_diagram.jpg

But, I heard that speed limit can be turned of by cutting pink wire from ecu. I do have pink wire whit 2 silver spot on it, but it´s in pinout number T-19.
Can I use this wire for boost controller`s speed signal? (I have mine´s ecu, so I don´t have speed limiter..)

(Sorry about my poor english..)

 

[seoul4korea]

Are you talking about the RPM signal wire? Solder into T17 if that's what you mean.

 

[Joni]

No, I mean speed signal wire. I already connect RPM signal wire..

 

[seoul4korea]

ohhhhh sorry man

 

[IJ.]

pink/grey should work but it can be a little bouncy as it's connected to a reed switch behind the cluster.

 

[Joni]

pink/grey should work but it can be a little bouncy as it's connected to a reed switch behind the cluster.

I didn't find that pink/grey wire from ECU harness, which pin it should be?

 

[IJ.]

Sorry don't know never ran a stock ECU in the car, it's easy enough to find/verify.

Jack the car up put it on stands idle it in 4th/5th connect a multimeter to ground on continuity then find any pink/grey flecks wires and probe it, you should see a bunch of on/offs, while it's connected increase the rpm a little it should increase in frequency then push the clutch and tap the brakes it should stop.

Just keep in mind what I said about it being an ugly signal, the ABS sensor has a much better output.

 

[92TealSupra]

Pink is what it should be. It should be on your Gray connector ( M1 ) it is located on that plug right next to a yellow/Green which is your water temp sensor, on the other side of the pink wire, there is a open spot.

 

[Joni]

Just keep in mind what I said about it being an ugly signal, the ABS sensor has a much better output.

It's ttR so i don't have ABS..

Pink is what it should be. It should be on your Gray connector ( M1 ) it is located on that plug right next to a yellow/Green which is your water temp sensor, on the other side of the pink wire, there is a open spot.

M1? is that ECU connector?