Is this needed?

[nunezfrancisco30]

So since im missing the little metal L shaped piece that goes where the arrow is pointing, I wondered If I can just PLUG it up and be ok? I still have the Power Brake Check Valve from the m42 engine, I know I have to switch to the one for the m20b25 but is it really necessary to do so? or can I keep current set up and plug that port like I mentioned? Its obviously creating a huge vacuum leak :(

[peytonracer4]

it should be plugged already in a late model car. i think

[nunezfrancisco30]

Hmm idk real oem shows something diffirent, but my question etilo remains at the ok to plug? What does the power brake check valve do?

[SmokeE30]

I'm fairly certain the valve is only to retain as much power brakes as Possible in the event of the engine stalling.

[Cabriolet]

it should be plugged already in a late model car. i think

it is only plugged in late-model manual cars.


fill the hole with JB weld and let it cure.

[nunezfrancisco30]

Will do thanks guys!

[Pootis]

Its not plugged on my late model and made it idle crazy when boost popped the hose off