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3 wires from attessa, where to hook up with aftermarket ecu?

StageZilla

By StageZilla,
in Engines & Forced Induction

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StageZilla Rising Star

StageZilla

Posted
Posted

hey guys well in my stagea im having trouble with the attessa staying on all the time and boiling the fluid, cause of something that is wired up wrong, so i been lookin at the attessa wiring diagrams for r32 gtr (must be very similiar to stagea) and there are 3 wires coming out of the attessa ecu which connect to the stock engine ecu.

well ive got an autronics smc installed and therfore where do i hook these 3 wires up?

the wires are:

engine speed signal

throttle signal +

throttle signal -

so anyone know what people do when hooking up aftermarket ecu's on gtr's?

also the diagnostic light on the attessa ecu comes up with 5 and 7 which are ABS right front actuator solenoid or circuit, and ABS rear wheel actuator solenoid or circuit, dunno if they are fualtly or just not hooked up right, as when it had the stock engine/ecu/gearbox etc the 4wd system worked perfectly

hopefully someone has abit of info :thumbsup:

cheers

Brad

sav man Grand Master

sav man

Posted
Posted

by engine speed signal you mean RPM?

Well the Apexi RSM Manual lists shows the pin location of Road Speed Sensor and RPM, for the Skylines, and the Stagea's.

http://www.apexi-usa.com/pdf/technicalDocu...ntation/199.pdf

  • 2 years later...
widebody32 Community Regular

widebody32

Posted
Posted

I have a SM4 in a 32 gtr. The speed signal goes to your HSI 3 on a SM4 and as for the tps + and - you can hook them up to your original tps signal wires to the computer which is ok if you just want to keep it in 4wd but if you want to put it in 2 wheel drive it will change the tps value in your Autronic as i had the same problem.

I am waiting for a answer back from Autronic but i am pretty sure you have to put a second tps in just for a signal to the attessa as the factory ecu has its own output for the attessa controller.

well ive got the same problem how did this get fixed?
gzzmos Contributor

gzzmos

Posted
Posted (edited)

lol maybe i need a little more clear i using a standard r32 gtr ecu for my run in and got my pfc to go in next and i have to rewire everything in.

abd have 3 wires left over... and dont know where they go.

whats SM4? and HSI 3?

thanks

Edited by gzzmos

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