Last week i took my car off the road because the knock censor packed up and then the maf did too and it put me in 'limp home mode' (max 3000 revs).

I took the engine to pieces and changed the knock censor and was told the maf probably just needs a clean so did that too,

Now the problems begin,

 

1, I have put everything back together and have this breather/vacume hose left and i cant find where it goes, pictures below, it comes from a small block next to the brake fluid pot, (car is a uk tt mannual) it has an electrical point at the bottom which is plugged in then 2 pipes coming off it one above the other, the bottom one seems to go down towards turbo but i cant find where the top one leads to, the top one T's off, one end goes down and the other is about a foot long and i cant find a home for it anywhere, its the one the finger on the right is holding,:confused:

 

 

2, when i started the car it was reving high, between 2 and 3000rpm, for a few seconds then in jumps up and down from approx 2750rpm to 3250, any ideas? ive checked the accelerator cables ant the butterflies and all seems fine, :confused:

any help or point in the right direction would be appreciated,

 

Think the 2 problems are one mate,without the pipe connected you will have a vac leak,buggering up the idle!-are you sure there isn't a spare spigot on the plenum for it?-or the vacuum gallery running along the side of the plenum?

BTW,looks like AIV solenoid........

Think the 2 problems are one mate,without the pipe connected you will have a vac leak,buggering up the idle!-are you sure there isn't a spare spigot on the plenum for it?-or the vacuum gallery running along the side of the plenum?

BTW,looks like AIV solenoid........

Sorry my bad,not your idle! :slap:your sure the throttle is closed?

yeah throttle is defo closed and i cant find a spigot anywhere, i spent an hour and a half looking and im hoping one of you guys is going to say " you thick t*t its over there!"