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Honda City Exi 1997

Honda City Exi 1997

Tagged: fuel pressure regulator

This topic has 3 replies, 2 voices, and was last updated 1 year, 7 months ago by EricTheCarGuy.

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September 17, 2022 at 7:20 am #1001760
John Silva
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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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September 17, 2022 at 8:37 am #1001765
EricTheCarGuy
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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.
September 17, 2022 at 11:48 am #1001770
John Silva
Participant
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
September 20, 2022 at 8:50 am #1001959
EricTheCarGuy
Keymaster
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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