Ms3kev413
Greenie N00B Member
I recently had the ko4 start smoking so i took the opportunity and upgraded to a CST4 EWG and also upgraded to a CS Catted DP and when i got the car back together i did a compression test and it was 150 50 150 150. i never got a misfire code for that cylinder. so next i did a leak down test and i heard some air coming out of the intake manifold through where the BPV recirc connects to the manifold. i also used a borescope to see in there and this what i saw. The other cylinders look normal. i also tried to add a bit of oil to that cyl and my compression looked the same. I'm not a professional and never had any problems with my engine up until this so any advice will be appreciated. i will definitely take a better video whenever i get a chance.
