Help, what goes here?

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Dec 19, 2007 | 12:07 PM

Mike96z

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Help, what goes here?

Alright, took a look under the engine bay, I have a couple things missing I beileve, does anyone know what goes here? There are 2 pics, I dont have Air/Egr and I cant find the PCV so im sure it goes to one of these or something. Its a 98 LS1 and if anyone has diagrams that would help too. I also see the passenger side valve cover has a cap where a hose can be placed on it, guessing for PCV. Thanks

Dec 19, 2007 | 12:18 PM

The Alchemist

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The first pic is the gas vapor recirc line or whatever it's called. It's a 90 degree line with fuel fittings on each end.

The second picture is for your PCV valve. If you are running your motor without that line attatched you are getting a lot of unmetered air into the motor, not a good thing.

Dec 19, 2007 | 12:32 PM

Mike96z

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dont need the first one then, any diagrams of the PCV setup on a 98 and or how id put one on there? thanks

Dec 19, 2007 | 12:52 PM

bczee

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Another option for the pcv port. is to plug it and run breathers on the valve covers. Can be messy if you have some blowby.(this is where the PCV system does help).

The stock PCV system runs a tube from the back Driver side had to a Y.. then one of the tubes goes to the back passenger side valve cover and the other tube runs into a PCV Valve which then goes into the PCV port. There have been some drawing on a few threads, try searching for them.