TwinTurbo.NET: Nissan 300ZX forum - The head gasket leaks combustion pressure into the cooling
People Seeking Info
 
   


     
Subject The head gasket leaks combustion pressure into the cooling
     
Posted by Doug71zt(CAN) on February 13, 2021 at 1:22 PM
  This message has been viewed 136 times.
     
In Reply To Will a leaking head gasket cause surging under boost posted by GBlack300TT on February 12, 2021 at 11:02 PM
     
Message System under high boost, not vice versa.
It could be knock retard causing the surging, happening when under prolonged periods of high boost in the higher gears..
How much boost are you running? What's your wideband O2 reading? Pump gas octane?
Yes, bad plugs can cause misfire under high boost.

     
Follow Ups  
     
Post a
Followup

You cannot reply to this message because you are not logged in.