[Mk2] [Turbo] Blow-by issue or normal?

[MikeMr2]

Hi guys, just installed my 'new' gen 2 3SGTE. Runs very nice and smooth, and can't wait to drive it. But when i pull off the oil cap with the engine running, the engine will drop lower RPM...is this normal for a gen2?
I installed an HKS blowoff, Apexi air intake, 3 inch downpipe+ exhaust, Xs power Intercooler.

Thanks for the help!

[MikeMr2]

Anyone?

[RyanRs]

Hmm, dont know for sure as i dont have much experience with the rev1/2 but double check that all your pcv hoses are free from any blockages. I guess that if there blocked then the extra crankcase pressure pushing on the backs of the pistons could cause the ECU to try and increase the revs to compensate ??

[SWMark]

Yes this is normal.

[Slarty]

It's normal for rev 1/2 cars, I'd guess due to the AFM?

[MikeMr2]

Thanks!! I was a bit worried..

[CelicaGT4]

Definitely normal - a slight amount of throttle should completely remove the blow-by through the cap. By ~1200rpm mine's neither sucking or blowing. (I know for sure my compression is fine and I'm not burning oil).