Boost figures while driving

[Turnerdv10]

Evening . Any ideas what the boost levels are supposed to be when flooring it as I can’t even get it to boost to 2 psi always on minus . Wrx sti Hawkeye 2006 prodrive . Also may not. Be related I found the green diagnostic connectors actually connected under dash since I got from Subaru place in Yorkshire . 

[Jay762]

my 2.5 hatch would boost to 1.5 bar (S# mode) which is about 21 psi - is your gauge plumbed in correctly?

[Turnerdv10]

I’m just reading it off the on board computer . I have plugged into and as usual no fault codes showing but knock correction is -2.5 and air fuel correction is -1.88 . So obv the ignition timing is -2.5 I assume that’s right . 

[Sandals]

Boost pressure isn't listed in your pic

[Turnerdv10]

I know I uploaded this information to see if anything was  amiss . I’ll have to get someone to look at it who knows what there doing as while driving its now holding back when turbo cuts in. Could be anything lol . 

[Sandals]

Have you checked to make sure you don't have any boost leaks?

[Turnerdv10]

I’ve checked all the pipes I can see . This morning is drive perfect and it felt it boosted fine (didn’t have computer connected tho ,typical ) This afternoon holding back low down .and felt jerkiness accelerating . This evening ran fine . Hmmmm .