one way is to have both pumps come on all the time. When you turn ignition on. You can use the out puts on the AEM to tune on the relay to both pumps?
This way you it bypass the stock tt fuel pump controller all together.
Sound like you will be using an after market FPR anway?
Second way is leaving one pump using the stock setup and
the second pump comes one at a curtian boost level or speed.
My setup will come on at a curtian boost level.
You would have to hook a seperate relay to power the seond and connect directly to an assign out put one the AEM to turn the relay on when you want it.
I hope by this coming spring I can get Bigger turbos and my fuel setup done.
Just like everything else it is $$$$$$?
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