This topic contains 3 replies, has 2 voices, and was last updated by 
EricTheCarGuy 1 year ago.
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Topic
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Hello. I have a problem with my Fuel Pressure Regulator, when i attach the hose from intake manifold to the regulator, engine rpm drops to zero and idle roughly. Local mechanic advice to replace FPR but i already did and nothing changes. What could be the reason for this?
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If the rpm changes when you hook up the vacuum signal, then the regulator is likely fine. I’ve almost never seen issues with Honda fuel psi regulators. As for the issue you’re having, I recommend reading through this to help you find the cause: http://www.ericthecarguy.com/faq/solving-automotive-performance-issues
Please keep us posted and good hunting.
Idle is literally very low, is it good to adjust idle air screw to tune idle? Even if i turned the screw too much already
Never adjust that screw. Please read this to help solve the idle problem. http://www.ericthecarguy.com/faq/solving-automotive-idle-problems
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