Electronic boost control..

[PaulsM]

Hello, could someone explain - how to install electronic boost control. I would like a potentiometer installed, which outputs/inputs could I use? I have 3 way vems valve.

[gunni]

what you can do is wire the pot into a pulled up channel and just use 2 wires. GND and Signal to the ECU that way you can control boost.
You need to use a ignition, injection or stepper output for a boost valve.

for ign and inj output, wire the other side of the valve to switched 12v
for stepper output, wire the other side of the valve to gnd

[PaulsM]

Could you explain it more simple, please? What is "pot" and pulled channel?

[gunni]

a pulled up channel is a channel already connected to 5v via a resistor, 1k Ohm or more.

a pot is a potentiometer

If you wire one side of the pot to analog gnd and the middle to a channel that is already 5v then by moving the pot you are pulling the 5v down and that will represent a signal to the ECU between 0-5v

If you wire the middle to the ecu where there is no 5v present then you need to make wire in 5v to the potentiometer as well, they usually have 3 pins and they´ll usually be
GND
Signal
5v+