speed signal help

[JZA80RR]

hello, i got a 1990 mod ma70 turbo with a jdm 2jzgte swap and AEM ems
is there a vehicle speed signal wire somwhere ?
i need a speed signal to run the 2step launch control in the AEM

:1zhelp:

 

[TurboStreetCar]

If its still a mk3 transmission you can pull a speed signal from the rear ABS sensor mounted to the rear of the transmission. Its going to be the RR+ wire shown here.

http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=110

If its a transmission from the mk4 then it could be different. That signal is "busy" As it has many teeth, another one you could try is the speed sensor in the combination meter.

Yellow-red stripe shown coming from the combination meter here.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=137

And Pink wire going to the factory computer shown here.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=49

It also goes to the Cruise control computer shown here. Also Pink.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=101

Strange you need a speed signal for a 2step, usually just a clutch or brake switch and RPM is what they require.

 

[JZA80RR]

Yes R154 mk3 transmission, i want the 2step to only worke under 7 mph so thats why i need a speed signal to the aem ecu

i am not shure the owner before me have got the right wire for speed signal in the A2 pin on the AEm ecu, so can i find the right speed signal wire behind the glove compartment ? also what color shud the wire be ?

 

[TurboStreetCar]

.
Yellow-red stripe shown coming from the combination meter here.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=137

And Pink wire going to the factory computer shown here.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=49

It also goes to the Cruise control computer shown here. Also Pink.
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?S=Main&P=101