d8moa

fitted a new hks ssqv this morning and after a road test found out it dosnt like to idle and cuts out!! when its hunting and trying to cut out theres air coming from the ssqv so its like theres not enough pressure to keep it closed?

anyone else has this problem?

KAS35RSTI

iTrader: (73)

im not suprised as some impreza's do not like it! however have you tryed adjusting the spring?

d8moa

didnt no you could adjust the spring

do you have to take it apart?

Abx

iTrader: (15)

Had no issues with the SSQV on my 06 WRX, have you plugged the 30mm pipe that is not needed anymore?

KAS35RSTI

iTrader: (73)

depending on what phase ssqv you have, at the back there should be a nut. also have you inserted the blank plug??

d8moa

mine is the latest one and has no way of adjusting on the back,

i pluged it with a rod i had at home ( i will be buying a proper bung) i would of thought it was air tight but you never no

KAS35RSTI

iTrader: (73)

to be honest mate, just put the OE one back in. it will do the job its suppose to do. you will not gain anything from the ssqv!

d8moa

you have read my mind lol just a bit annoying as a few people i no have them with no problems but as you say some cars are fine some arnt.

KAS35RSTI

iTrader: (73)

spend you money on something more wiser, like maybe a panel filter or even a backbox

Rickstarbo

This is a problem commonly known in the Evo community. Basically MAF sensors do not like VTA dump valves. At low revs the dump valve vents the used gasses to atmosphere and then the MAF sensor gets a false reading which then causes dropping revs and stalling at low revs.

The way around this is a dual vent dump valve. What these do is to put the used gasses back into the system at low revs so the MAF sensor gets a correct reading but at high revs it dumps the gasses to atmosphere when the car isn't going to stall.

There are a few available on the market, the Turbosmart Dual vent, the Forge Split R and the APS.

I have an APS available if you are interested as this will solve the stalling issues at low revs but also gives you the dump valve sound at high revs giving the best of both worlds.