TwinTurbo.NET: Nissan 300ZX forum - Boost PSI at cruise
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Subject Boost PSI at cruise
     
Posted by Metacom on December 01, 2014 at 1:11 PM
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Message While cruising on the highway at a steady speed my boost usually sits around -7 at 65MPH.

Recently I noticed the needle might dance around a bit by a few PSI but without any noticeable change in how the motor is running. Along with that, sometimes while at a steady highway speed the boost gauge will drop to below the -14 mark but will rise and then settle back to -7 with a little push on the pedal.

Gauge rises and falls normally outside of steady cruising.

Confirmed hitting full factory boost setting with an after market gauge. No codes. Vacuum lines are good, tried a 2nd boost sensor as well, same thing.

???

     
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