cant up the boost

[90xsi]

hey i installed a boost gauge today and its reading at around 0.8 to 0.9 bar. There was a manual boost controller so i tried to turn the knob and it made no difference. I then installed an old school hks evc boost controller and still couldn't up the boost. i then took off my lines therefore running infinty boost but it still only ran 0.8 bar. What do you guys think i should be looking at cause i really want to get this to work so i can up the boost on dyno day. any help would be much appreciateed
Regards

 

[Qik-1.8]

this has been covered before mate.
can be cause by a series of things
Blow off valve
hooked the boost controller up wrong
your boost solnoid can be to far away from the actuator or wategate
you could have a air leak somewhere in the engine bay

hope this helps

 

[SIVART]

I can check it for you phi when you come past

 

[CLuTZ]

if you took the hose off the actuator and it's still doing it then i'd say your actuator is stuffed, and it's stuck open. Have you noticed your car is laggy at all?

 

[90xsi]

this has been covered before mate.
can be cause by a series of things
Blow off valve
hooked the boost controller up wrong
your boost solnoid can be to far away from the actuator or wategate
you could have a air leak somewhere in the engine bay

hope this helps

i did a search and gathered bits and pieces. I just wanted some input on the issue from other members. thanks for your help mate. I cant see hooking up the boost controller wrong a possiblitly cause ive swapped the wires over just to check then ive just left the wire unplugged therefore should be running infinty boost but the gauge only reads 0.8 still. and car feels the same

 

[90xsi]

im not sure about laggy. i start making boost at about 3000ish rpm roughly. how can i tell if my actuator is stuck open?? i really wanna get this sorted before the dyno day.

 

[CLuTZ]

ive just left the wire unplugged therefore should be running infinty boost

running unlimited boost is when you pull the hose off the actuator!

 

[90xsi]

yea ive pulled the hose off the actuator to see if the boost controller was busted but it maxed out at 0.8 bar so im abit stumped. im guessing somethings wrong with my actuator?how can i test my actuator?

 

[Craig_CD9A]

I had the same problem. Try reversing your blow off valve if you're still running the standard plastic one, if you get more boost then, its the blow off valve.

 

[90xsi]

ill give that a try. lets hope it fixes the problem thanks for the info mate

 

[90xsi]

alright problem solved. it was the bov!! i just bought dean's gfb bov (thanks dean) and installed it. Right after installling it i took it for a drive and it hauled ass. It's sitting on 1.5barish so i backed off so now im gonna have a look over all my turbo lines and see why its over boosting cause my boost controller was switched off. thanks everyone for there input, much appreciated

 

[Dean]

Welcome Mate.
Vrrrrmmm Chssssh

 

[Qik-1.8]

thats good mate, not too big a problem