CUTS OUT WHEN I REMOVE DIP STICK

Like the title says my engine cuts out when i remove my dip stick or the oil filler cap, is it ment to do this? could i av fucked up when i fitted my sr20 throttle body and bored inlet? ive spoke 2 2 mechanics and there as confusd as i am lol.

to start off with why would you want to? cant say iv ever thought about doing that
if its workin fine with it in, keep it in
there is a pipe in the centre of the cam cover to the inlet mani
there is a valve on there called pcv (i think)
its a 1way valve suposed to relive cirten amount of pressure built up in the engine when its running
i guess when you take out the dip its loosing to much pressure
but thats just a guess

gary

That pipe ur on about in the middle of the cam cover if i pinch that with my fingers it cuts out aswell? is that normal? and i tink i know what valve ur on about but there wasnt 1 on the new mani or the holes 2 fit 1 so i left it off i dunno if its a problem its just i know ive ad it running with the cap off b4 an now it dosent. i just heard this weird noise and started looking in the engine bay and thats when i noticed it. the noise is my air filter working twice as hard now cuz of the sr20 or maybe a lil leak in the plastic bit the air filter goes on 2. i just dont want 2 be a few weks dwn the line sumthing breaks and i find out i could of avoided it if i had got on 2 the problem straight away.
cheers n e way m8 super helpfull as always.

mine ran fine with the oil cap off never tried the dipstick tho.
seems quite strange...

thanks 2 dominaor im pretty sure its the 1 way valve that goes on the inlet, it sort of makes sense dont it?

cheers, but its only a guess mate
i remember a few years back someone had a similar problem, turned out he had the valve on the wrong way
what inlet mani are you using? some pics might help a bit

gary

I still avnt ad a go at up loading pics and the mani is just a standard 1 i think, just bored out 2 fit the 60mm throttle body. im sorting it 2moz so ill let u know if it worked.