Oil bypass and check codes

[MazdaSpeedSter]

Engine is newly remanufactured and getting oil in the catch can, seems to be getting worse. Think a possibility may be a bad head gasket?
Also, had the turbo out and there's oil or bypass in the intake side of the turbo.

Is this all a bad turbo or head gasket or leak with a piston ring not set?

what do I do, what kind of work am I looking at?

also have CEL codes:
p0171
p0660
&
one more I cleared and can't remember, but it's a no O2 sensor connection bank 1 or 2 something? I'm just going to replace both of them cause they're both still stock.

thanks for the help! (braindead

 

[thuzil]

Oil in the catch can comes from your valve cover and has nothing to do with the head gasket or anything else other than a bad design of the baffles in the valve cover. This is most likely nothing to worry about, unless you are emptying it every day. Also, a bit of oil in your intake piping is not anything to be overly concerned about. The seals on your turbine shaft will let a bit of oil by. Are you running the proper oil restrictor on your oil feed line? Is your oil drain at least 0.5 inches ID and draining into the bearing support tray? If this is an MSP, then is everything on the turbo still stock?

The p0171 code could mean your MAF is dirty or, more likely you have a vac leak somewhere.

 

[MazdaSpeedSter]

yes, thanks, everything pretty much stock as far as that goes. I installed the catch can in the correct location correct? Where it is vs the pcv valve?