R34 Greddy Profec Controller

[NewmanR34]

Hey guys, just a few questions im wondering if anyone to helpout.

Recently installed a Greddy profec 2 ebc on my r34

Everything seems to be work, ihave had a good read on the forums and understabd how it operates,

Although it boosts fine up untill about 6.5-7psi but no matter what I set it to wont seen to go any higher and regularly drops back to about 5-6

Just doesnt seem to be boosting consistanly.

If anyone could shed any light on the situation would help heaps thank you eg

Set, gain, setgain settings and that

Thanks regards

Dan

[GTSBoy]

Assuming you have no other mods (thanks for including all the relevant information) then you won't want to be running more than about 10-11psi anyway. On that basis, the SET value won't be very high at all - possibly only 25 or 30. SETGAIN (or start boost) will want to be about 7 or 8 psi (or the equivalent in kPa if you've got it configured that way). GAIN will be set to whatever is needed to keep the boost from dropping off at high rpm without causing overboost. Given that the boost controller appears to be not working anyway, you can't waste time even thinking about GAIN at this point, so the value doesn't matter. If it was working though.....it wouldn't set real high anyway.

So, the most likely scenarios are as follows:

1) You've got it plumbed up incorrectly,

2) You've got a faulty solenoid,

3) You've got a broken solenoid loom.

You could have learned all of those possibilities by searching. I know this because there are recent threads on the topic that I have posted in. For this exact same EBC too.

Edited April 27, 2014 by GTSBoy