bonus sure ya have it installed correctly? you have all the caps off the boost solenoid? My friend had the same problem with his and he forgot to take teh cap off one of the ports on thes soleniod. But even still this unit spikes i think because of that faulty diod.

 

The boost solenoid is NOT connected, in any way, to the wastegate actuator. I left the one tube from the solenoid connected to the intake but I don't see how this could have any effect boost.

 

Ummm... why don't you try taking that hose off and capping the nipple on the MAF pipe. Given the frustration you have had with the Profec (which seems to be more than anyone else) I would give that a try. When in doubt, cap off anything not in use unless specifically instructed to.

And like Evo11V mentions, did you take off all the plastic caps on the profec's solenoid? (not the stock) There were 3 clear plastic caps, and all of them need to be taken off.

 

I didn't install it. I'll check them.

Anyway, the unit is holding boost now that I've shut off the Peak Hold display. Strange. I'm still selling it.

 

Aren't I a horse's ***?

There's a plastic cap on the "NO" port. Does anything need to be put in that hole once the cap is removed?

 

Nope. You know what you should do now? Go run your car.

I assure you the response will be infinitely better. I helped another guy troubleshoot tuning, only to find out his NO port was capped too. Now the thing runs like a champ.

 

Thank you and Evo11V.

If I ever meet either one of you (I'm sure I will), I owe you both a beer.

 

No problem man! Tell us how the car feels when you get the chance - also, psi mode should now be no different than bar, and peak hold should work just fine (and will be helpful for tuning!).

 

I pulled out the cap and ended up having to lower my duty cycle from 70% to 45% and the spool up is RIDICULOUSLY faster than before.

It's holding steady (I went for a 30 minute drive to check out boost in all gears) with a slight .5 PSI fluctuation when it hits peak boost then it holds. There is NO spiking whatsoever and it sits right at 1.41-1.42 bar.

 

Awesome!

Now you need to go beat whoever installed the thing for you for not following the instruction manual.

 

There ya go! Thought that cap was on. Now i just have to get my unit fixed since i have one of the faulty ones.

Glad I could help...

 

Just a quick question. Aren't you supposed to use the NO port when installing on an Evo?

 

im gonna try to switch it to bar