Boost problem
 

Hi ppl got a wrx bugeye turbo went put another td04 so standard no mods done yet but still not boost feels really flat ... There was bit oil in the inter cooler and check all pipes ... All good ... If the car isn't movein the waste gate opens fine when get bout 3000revs and dumps fine but you drive it no dump and no boost ?? Any advise ?? Cheers

So you get boost when the car is stationary.

if wastegate is opening too easily or early maybe tighten it up, or look at your boost control solenoid?

Yeh boost when stationary but when you drive it no boost doesn't even dump ... And wastegate is not that loose and put a new wategate solenoid on because the wastegate didn't open at all at first

Have you got a boost gauge fitted.

Yeh boost gauge fitted boost to 1 then straight back down no dump at all part from when stationary m8

So when stationary are you saying that the gauge goes up to 1bar.

Yeh mate and when driven but doesn't hold it and can't get me head round why it dumps when you rev from throttle body but when drive nothing and feels flat

Not bragging but i have 3 impreza turbos and none of them show 1bar boost when stationary so if your car is showing 1 bar boost when the revs are at 3k when stationary i would be thinking about what the neutral position switch is there for.

Should not boost when standing still. The boost gauge will go up out of vacuum but not into positive boost. Should stop at 0.

Sorry just been out and doesn't go over 0 when stationary but dumps as I said but flat and not dumping when driven ...any clues tried all the hoses and spray with soapy water because so block said try that and still nothing changed the turbo as mine was bust but had that off in the week and it was fine was second hand and only standard but was like new

That clears things as saying that it boosted stationary made no sense at all.

Could the neutral postion sensor cause it .. Read somewhere that could cause the problem

As above especially if the gearbox has been disturbed.

Without any fault codes comeing up tho as its clean nothing on there ?

Have you sorted it yet.