Hi, all. I've been tracking down an oil leak which I think is coming a lower CCV hose. (Right hand side of hose number 4 on this diagram.)
Can any of you experts confirm I'm barking up the right tree? I had planned on installing the cold-weather CCV system before winter, but if it is in fact...
P0171 & P0174 Diagnostic help here you go
1. Check additive and multiplicative values
2. Perform smoke test of intake using inert smoke
3. Check Crankcase pressure with Manometer
4. Use a VE calc(volumetric efficiency calc) I posted how to do this and the file a while ago don't remember when...