How can i see if an electronic boost controller is defective??

[SmashBros]

Im about to buy a used apexi boost controller for my setup, whats the best way to check if this thing is defective?

Oh and excuse the smiley, its a typo

 

[XpL0d3r]

boost gauge

 

[4bangincivic]

If it's not controlling the boost.....

 

[SmashBros]

Ah, i see.. but wat about its electronic functions??

 

[2NRSTV]

What electronic functions are you talking about? Are you talking about the "Boost Duty Cycle"?

 

[SmashBros]

What electronic functions are you talking about? Are you talking about the "Boost Duty Cycle"?

Yes

 

[2NRSTV]

I guess you can just turn it up and down and see if there is a difference in boost response. I'm mean, there's not much more you can do except comparing what it's telling you to what another gauge is telling you or by what your eye can see (throttle position).

 

[emerican]

Do you have a boost gauge to check it with?

 

[SmashBros]

Yea i gotta boost gauge hookd up, just nt the whole turbo kit of course...