Need your advice guys! Boring but possibly fatal boost controller question!

[Supra Kong]

Hi guys,

Ok, to keep it short!

Bought a used Greddy profec B spec 2 from Japan. Had it all fitted and now found out the actual controller is faulty! Its basically giving me unlimited boost!!

I run the Jspec turbo's and managed a reading of 1.74 bar!!! Help!!!

I then changed the control unit with a mate's who has the same one and it worked fine!!!

The dude Dino i bought it from at Japdyno has been brilliant. :thumbs::thumbs: Bought this 2 months ago and he said he would change the unit, however he hasnt got a spec2 in stock!!!

And i cant really be bothered to have all the gubbins (solenoids etc) changed! So he offered me a profec S, or any from his website with either money my way or vice versa....

Its nice to have the boost read out as i aint got a boost gauge!

Here is a link to his page.... what ya think?

http://www.japandyno.com/advanced_search_result.php?&keywords=boost+controller&x=0&y=0

 

Alternatively i found this

http://www.ebay.co.uk/itm/Greddy-Profec-B-Spec-II-2-Repair-Service-/170793483820?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item27c415be2c

Anyone know of these guys?

Am very skint now, just bought the car, insurance, extras otherwise i would just buy a new one..... but cant quiet stretch it!!!!

What do you guys think?

Any advise welcome!!!

I currently have disconnected the vaccum pipe from the controller and put a bolt in the end of it, at least this way it shouldnt run any unwanted boost!!!

[Supra Kong]

Any recomendations?

[Scott]

I can't really help with regards to the boost controller choice, but are you absolutely sure the controller is gubbed? The gain setting is very important to have set correctly or it will overboost like a maniac.

[Supra Kong]

Well... we used exactly the same settings as on my mate's unit, and it wasnt overboosting then.... And someone told me that a lot of these units pack up.... not sure really. Am a little worried to keep trying different things and it constantly going to 1.6 or 1.7 bar!!

[Swampy442]

As Scott said, turn the gain right down and see if that helps, but if youve swapped the control units and its ok... I like Profecs, if they made a new profec b, not the 2, Id have one. The HKS in my car is insanely complicated.

[Supra Kong]

As Scott said, turn the gain right down and see if that helps, but if youve swapped the control units and its ok... I like Profecs, if they made a new profec b, not the 2, Id have one. The HKS in my car is insanely complicated.

 

Thats what i heard about the HKS as well, hence stayed clear! Yeah turned the gain down to nothing and no difference! Its definately buggered!