I have a tec3 and wanted to use the gpo output to control the nitrous but i need it only for spool up, the lauch basically because i have a tight converter, so i was hoping to activate it at 3000 rpm and deactivate at say 15psi...... The nitrous gpo only allows you to set the parameters at which rpm and kpa to activate.....Is it possible to use the gpo full control table to deactivate the nitrous at 15psi?

to do it, you will need to use to GPO's set to nos control, 2 relays, one relay configure to default close and one configured to default open

1) hook the default close relay to GPO1, enter the settings you want to trigger the nos off, wire it to one side of the solenoid
2) hook the Default open relay to GPO2, enter the settings you want to trigger the nos on, wire it to the other side of the solenoid

see circuit

Thanks a lot rasta it makes sense and i appreciate the response

Dont forget you can wire the fuel solenoid in with it as well if (And my reccomendation) you use a wet kit. Anti-lag FTW! Let us know how it goes!

Btw awesome pic Rasta. I might just sticky it cuz I know I hear a bunch of people wanting to do but are unaware you have to do so. (Wiring in "antilag" only activation with TEC units.)

Good info.

Indeed it is. Thanks CC for sticking it. had to scoot real quick before I got chance to.

An easier way would be to use one GPO set to full table control. You would need two pair of map breakpoints set closely together. One pair would set your minimum kPa activation point and the other set would be used to control the max kPa turnoff point. You'll also need one pair of rpm breakpoints to set your minimum activation rpm. I space mine 2 kPa apart. You will only need to wire one relay to use this method.

I use this method to control a complicated aux fuel system activation, and cutback of the electronic injector pw. It works very well.

For my nitrous system, I use a GPO set to full table control to make a section of the table HOT. Other delay timers, and switches are used to more finely control the nitrous system, but... the GPO must be hot or the rest of system will not function.