TwinTurbo.NET: Nissan 300ZX forum - There are many things that can cause that
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Subject There are many things that can cause that
     
Posted by -Grimm- on June 25, 2014 at 1:11 PM
  This message has been viewed 149 times.
     
In Reply To I've searched the best I could. Blue smoke under boost posted by Chasedalot on June 25, 2014 at 09:47 AM
     
Message PCV valves would be the easiest to test/replace. Get your car warm, then run it with the oil fill cap off. See if there is excessive pressure in the engine (a little pressure is expected).

If that appears to be OK, then you may be looking at turbo oil seals.

Have you looked at your intake piping to see if there is a lot of oil residue?

Valve seals and piston rings can also cause blue smoke, but it would more likely be at cold start up rather than full throttle.

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1992 300ZX NA 5 Sp (Dead)
1990 300ZX NA Auto 2+2 (Dead)
1990 300ZX TT 5 Sp (Building)
2004 G35 Sport 6MT (DD)

     
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