S11EPS

Morning guys n gals, hoping someone can help....

I think my dump valve is f**ked - is now activating far earlier than it ever did, on almost no boost/when lifting off from very little revs.

Rather than a hard and loud TSSHH I get a long and lazy (and quiter) tssssssshhhhhhhhhh and it actually vents boost on a very light (almost no) throttle.

Idle is wrecked, hunts and stumbles between practically zero and 1100 rpm.

Can anyone confirm if this is the DV?

Thanks in advance.

swifty.....!

iTrader: (4)

sounds like its gone to me bob it off and have look and a push. is it standard dump or after market if so what make?

S11EPS

It is aftermarket, forge (IIRC), not sure of model number.

Would it just be a split diaphragm or something? Can these be repaired or is it time for a new one?

Am only running std boost, is there a life expectancy for these things? Only had since January but do quite higher mileage - prob done 15k miles on it already.

500

Ive heard that the springs somtimes break, take it apart and have a look, they arent complex. If you speak to forge, they'll probobly send you a new spring FOC

flatoutscooby

I had the same problem and it was the spring, Forge sent me an FOC replacement straight out. Their after sales support is top notch

Luke