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4g63 stock fuel pressure psi

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Old Feb 8, 2017 | 10:43 AM
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Jovan Caro's Avatar
Jovan Caro
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From: fort hood
4g63 stock fuel pressure psi
wanted to know the stock psi for my evo 8 fuel pressure just got a aem gauge but wanted to know the proper numbers it looks like I have a walbro255 haven't checked but it whines like one
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Old Feb 8, 2017 | 11:47 AM
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meckert
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From: Denton, Tx
at idle 43psi--that would be for all kinds of pumps stock and after market
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Old Feb 8, 2017 | 01:06 PM
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Jovan Caro
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From: fort hood
Thank you
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Old Feb 8, 2017 | 08:58 PM
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RightSaid fred's Avatar
RightSaid fred
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From: in a garage
The manual says it's 33 PSI when it's idling.
It only goes up to 43 PSI if you pull off the vac line.
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Old Feb 9, 2017 | 06:27 PM
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barneyb
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From: Grand Island, NE
Originally Posted by RightSaid fred
The manual says it's 33 PSI when it's idling.
It only goes up to 43 PSI if you pull off the vac line.
Or when the fuel pressure solenoid is venting.
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