auditunerb5

Ok need serious help with this Vacuum leak. I have on 17 hg at vacuum when normally I have 19hg. My idle trims are lean. I pressure tested my system to 20 psi and there are no pressure leaks?

I also installed new brake booster valve because it was leaking. But no leaks now @20psi. So how can there be a vacuum leak?

Ray Khan

I had a lean code when I had my catch can vented to atmosphere with no PCV valve in the system.

auditunerb5

I do have my pcv valve vented to the atmosphere with a pcv still in there. Do you think the pcv is bad. You can blow thru either way but I thought that was normal. Did you lose vacuum when you had this problem?

Thanks

Ray Khan

Did you start getting this code when you installed the catch can? I don't have my PCV anymore to test, but you should only be able to blow through it one way. A way to test the theory, abbeit not ideal. Plumb the catch can to the inlet instead of to atmosphere and see if the code goes away. I just ordered an "aftermarket" spring loaded PCV from MsMaster for $9.

auditunerb5

Thanks!

auditunerb5

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auditunerb5

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