GREDDY profec A urgent help needed

[JDMGTB]

Hi there guys, I new to all this, but I'm having major problems with my profec A boost unit in my 97 GTB Legacy. I have followed instructions to the letter and still no joy. It is plumbed up correctly, and I did all the learning properly. It does the learning sequence, but at idle it reads 3bar, it should read as an active boost gauge that matches the analouge gauge. The car as it is now is running default wastegate boost, 0.7bar, these cars should run roughly 1bar at factory setting, it is so lathagic to drive and feels like everything is an effort. It's got me well and truely stumped and any advice or help that any of you may have or issues you've had in the past and fixed would be much appreciated!

Cheers guys.

[WRXONP]

Faulty map sensor ? Is it new ?

[JDMGTB]

na it came in from Japan already installed. So naturally assumed it was working properly. It's not the MAP. I was wondering if it were the "stepping box" but it seems to be making all the right ticking sounds.

[WRXONP]

Yeah . The box in the engine bay has a solenoid to control the waste gate . And a built in map sensor which is how it reads and shows the digital Display.

[EJ20T]

hey man i live down links ave, i could take a look at it for you at some point if you cant firgure it out

[JDMGTB]

oh ok, didn't know that. So how do I pull the map sensor out of the box and check it?

Have you got the green rex in the Mount?

[WRXONP]

Nope lol . . But not sure if you can pull it apart . . . Are the wires ok ? Does it ever read any thing on the display ?

[JDMGTB]

Hey thanks EJ20T that'd be great aye cos it's got me stumped and I'm just over it aye, just want it running right. Using so much petrol having to accelarate harder than usual cos it's so lathargic. Plus all the old women in their Ford Fiesta's smoke me out of the lights down Hewletts road every morning on my way to work aye hahaha

[JDMGTB]

when I first did the learning sequence it dispalyed correct boost at idle, then when I blip accelerator it shot up to 3.0bar and stayed there. When the box is on or off it doesn't change the boost. Always get 0.7bar. Just guts me aye.

[JDMGTB]

I shoot down Concord Ave every day after work, that's just past Links Ave aye? Haven't been up in the Mount for long.

[WRXONP]

Yea 0.7 will be spring pressure . . . Meaning the solenoid is not doing any thing . . . Could be wiring fault or dead solenoid . . . . . But if solenoid is dead you should still have boost / vac reading as its separate to the boost controlling part (solenoid)

[JDMGTB]

Yeah I'm rapidly beginning to come to the conclusion that the stepping box is rooted. Might just revert it back to stock setup as not boxes are not cheap are they, plus I'm also beginning to think it's more hassle that it's worth, which will eventually be a rooted engine if it did work right? Would be nice to have had the "scramble" function though lol

[EJ20T]

 JDMGTB said:

Yeah I'm rapidly beginning to come to the conclusion that the stepping box is rooted. Might just revert it back to stock setup as not boxes are not cheap are they, plus I'm also beginning to think it's more hassle that it's worth, which will eventually be a rooted engine if it did work right? Would be nice to have had the "scramble" function though lol

yeah links is off concord, id personally just revert to the stock set up untill some one can have a look at it for you

[JDMGTB]

I was thinking I might go see Dave at D Tech at some point, but he's a busy guy and I doubt he wants to muck around with some time waster haha. Whens good for you for me to swing past? Just good to get a second opinion.

[EJ20T]

im pretty busy with my owe shyte but maybe sunday, pm me your no.

[JDMGTB]

yeah whenever is good bro, no rush don't want to put you out or anything. Number PM'd.