Gfb Boost controller on wrx question.

[wrxboy]

Hi there I have a g force gfb boost controller, all hooked up, it's reading boost and like the brightness and everything works, but when I try and up the boost it will not raise no matter what setting I put it on? Can anyone help?

[ADIKT]

plumbed up correctly? what kind of wastegate are you using? could be a few differant things

[wrxboy]

Thanks for reply, ive followed instructions all hooked up as it says, it has two diagrams for internal and external gates, mines internal. it just won't boost more than 7.8psi

[WRXONP]

Is it brand new ? May be solenoid stuck

[wrxboy]

No it's 3weeks old it's got lots of boost settings so was definatly working on last guys car. What you mean stuck? Sorry noob here haha

[Stoffa]

are you using an internal wastegate or external?

if it uses a 3 port solenoid this might help

if its internal wastegate (factory one inside the turbo exhaust housing) the actuator needs to be plumbed to the common port and the normally open port goes to the nipple on the compressor cover.

so when the solenoid is de-energised the actuator is essentially connected directly to the compressor cover. so if the solenoid ever craps out it'll drop back to 7psi (wastegate pressure).

once the solenoid is energised it cuts off the line to the actuator and vents the boost pressure through the normally closed port (which is now open)

if you have it plumbed correctly the controller may not be set up properly or the solenoid isn't working.

if you have an external gate the ports should be plumbed the oppisite way around from memory i.e normally closed port goes to the waste gate and the common port is still connected to the compressor cover.

.....I read it on the internet so it must be true

I tried lookiong on the GFB wesite but couldn't find the instructions, bad form GFB!!

[wrxboy]

Thanks for that stoffa!!!! Very much appriciated, by what you have said, it's all hooked up correctly for internal gate. So I'm guessing it's the soliniod? If it is can I just get any brand solenoid.

[Stoffa]

post a pic of the solenoid

if it looks similar to this you can probably buy a new valve straight from Mac NZ for about $70

[Stoffa]

If its only 3 weeks old it may not be the problem, is it definatly set up correctly? or are you using the settings that the last owner had set up?

have you tried turning the gain up? they can be a bit tricky to set up correctly, but pretty easy once youve got your head around the settings

[Stoffa]

wait just found the instructions

http://gfb.com.au/images/stories/downloads/g-force%20instuctions3003.pdf

if you want to test the solenoid just put 12 volts across the terminals and see if you can still blow through the same holes, or does it now vent on the otherside?

[wrxboy]

The solenoid does look exactly the same, I will give the terminals ago once I have time as am really busy ATM. I've changed all settings and couldn't get it to work I even got angry and put the gain up to 45 and duty cycle for the boost up to full but still nothing.

[Stoffa]

Dont forget to remove the boost pill from the vacuum lines as well. you dont need it with that type of controller

[wrxboy]

You lost me there? Sorry I'm a noob

[Stoffa]

try searching "boost pil"

basically, make sure the vacuum lines connected to the solenoid have no blockages in them, a boost pil is something thats in the factory lines that restricts the flow to the solenoid.

[wrxboy]

Ok sweet that makes sence.