TwinTurbo.NET: Nissan 300ZX forum - Only hitting 5-6 psi
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Subject Only hitting 5-6 psi
     
Posted by joejocrazy on June 09, 2014 at 5:36 PM
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Message After I took my Z out of winter storage (heated) I am only able to hit 5-6 psi. It hits 6psi quickly and holds but will not get any higher. I have a Greddy Profec 2 boost controller set on low for 13 PSI and high for aroudn 16psi. I have replaced some hoses and made sure ALL the connections are good. I don't have the tools to run a boost leak test. I have search all over the website and I am just looking for the BEST and most likely things to check that could be wrong. What do you guys suggest to do from here? How do you know if the wastegates are bad? How do you know if the boost controller solenoid is bad? I have an aftermarket boose guage and the boost pressure going to the controller so its reading accurate. 90z with 59k mile great condition runs amazing however very rich. NO ECU codes.

     
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