Water seperator/pcv
#1
Water seperator/pcv
I determined that my PO 171 and 174 trouble codes on my '09 LS3 were do to a vacuum leak. I found a water separator in front of the PCV valve (my guess is that it was installed to eliminate blow-by.) At any rate, the water separator was damaged and caused a vacuum leak. I removed it, at least temporarily, to stop the vacuum leak and smooth out the engine, which it did. The air/fuel ratio is now spot on. How necessary is the separator?
Thanks for your insight and suggestions.
Thanks for your insight and suggestions.
#3
It was installed after market when the engine was tuned with a twin turbo system. I was able to locate a replacement from Norgren. In the mean time, the by pass is working fine.
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