Join Date: May 2010
Location: Pottstown, PA
Vehicle: 99 SLK230
Other Toys: 2003 MDX touring, 99 GS400
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P0105 and P1519 because of a "y-valve"??
Is this possibly the cause of my CEL? The hose from some sort of fuel pump in my 99 slk230 (near the oil cap) leads back to a little y shape with another tube attached to it at the other end.
This y valve looks cleanly torn, I'm thinking that it's not supposed to be like this. There is a slight whistle from there, so I assume it is some sort of vacuum tube?
I see that some members have replaced the tubing for a few bucks with a short DIY time and it seems to be a cheap and common culprit. What is this y-piece called if I were to order it from the dealer?