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i live in japan and i have been driving around all day, butchering japanese while asking "what the f**k?" at all the speed shops i frequent.

its a grid dbc 2001. installed correctly as far as i know. read on.

the hose from the back of the unit is T'd into the hose for the boost gauge which goes to the intake manifold of course.

the solenoid has one hose going to the internal wastegate actuator, the other hose is going to the intake manifold. all using the correct sized hose. the solenoid has a 3rd hole, which i left open, per the instructions. i tired it both plugged and open, it made no difference.

its hooked up to a 12v power source and grounded to the chassis. thats not an issue, it comes on and lights up real pretty.

the stock solenoid has been capped off, but i left the plug connected, so i dont get a CEL. there are no leaks.

now, what is the car doing? the same f**king thing it was doing before i spent 3 hours installing the thing. boosting to 0.6-0.7kg/cm2 maybe even less then STOCK, due to the added vacuum lines?

i crank the knob on the controller all the way to max (3bar) and it doesnt make a damn bit of difference.

basically, i am assuming the unit is just broken, but then why would the car boost the same as stock? what did i do wrong, if anything? suggestions? im about 20 minutes away from ripping it out and throwing it away.

I had a similar problem a while ago when i bought a Gizmo MS EBCII. Hooked it all up, double checked everything, then tripple checked everything. Took it out for a test drive on the lowest setting and all was good. Went to turn the boost up and saw no response. Turned up a bit more and nothing. Cranked it to the max and sweet f all. Turns out there was a loose connecter in the unit that wasnt sending the controll signal to the solonoid.

What i suggest trying to see if the actula controll is stuffed is hook a syringe or somthing to the sensor hose to the back of the unit and force some air into it. You should be able to get pressures well over 1 bar, and when doing this listen out for the solonoid. If its workin good the solonoide should be ticking wildy trying to controll the boost (trust me youl hear it when it works). If not then id be askin for a refund or replacment.

so pull the hose off the back of the unit, force air into it and listen for the solenoid? ill try.

tried this. reconnected the unit. nothing.

before boost controller install car boosts .7bar

after boost controller install car boost .5bar and its not adjustable.

im ripping it out and throwing it away unless someones got a suggestion. at the least i gained the knowledge of installing a piece of shit so it will be that much easier when i get something that actually works and install it.

Sounds like its stuffed then, If the solonoid is doing nothing the car will always run slightly lower boost than standard as its just telling the wastegate to open ASAP.

Good luck with the next one then.

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