Quote:
Originally Posted by HKD126
I use a 20psi check valve from ProMeth. Rodney (ProMeth) recommended it over the solenoid for the simplicity of my system.
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20psi? What is the purpose of such big opening pressure? Full vacuum is 14.7 and I can hardly thick that an engine can make more than 10psi vacuum.
Could you try to do a flow test with/without the valve? Or maybe just remove the spring inside it - I'll try that tomorrow.