11-06-2023, 08:02 AM
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#1
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Registered User
Join Date: Aug 2017
Location: Tucson,az
Posts: 766
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Another Hard Starting Question
Hello,.I trust that 20 PSI of cranking fuel pressure 0n a 02' boxster 2.7 is NOT enough to start it,..I researched the form and I found where it's suppose to be 3.3 Bar,..which i think is to equal 30-35 PSI,it was hard to start 2-3 times last week./and now will not start at all, but really tries to,It sputters and pop's a lot then it just crank's, Thank's ,for the help...Frank
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11-06-2023, 08:16 AM
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#2
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,649
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You have a fuel pressure issue.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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11-06-2023, 09:16 AM
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#3
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Registered User
Join Date: Aug 2018
Location: Woodland Wa
Posts: 1,314
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Quote:
Originally Posted by flmont
Hello,.I trust that 20 PSI of cranking fuel pressure 0n a 02' boxster 2.7 is NOT enough to start it,..I researched the form and I found where it's suppose to be 3.3 Bar,..which i think is to equal 30-35 PSI,it was hard to start 2-3 times last week./and now will not start at all, but really tries to,It sputters and pop's a lot then it just crank's, Thank's ,for the help...Frank
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PSI times 14.504 equals bar...... so 3.3 bar would be 47.86 psi
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11-08-2023, 07:13 AM
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#4
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Registered User
Join Date: Aug 2017
Location: Tucson,az
Posts: 766
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Thanks for the Info Gentlemen, fuel pump on the way..! Frank
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11-08-2023, 01:35 PM
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#5
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,996
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Doesn't these cars have a fuel pressure regulator? Just curious..
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11-08-2023, 01:37 PM
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#6
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Registered User
Join Date: Feb 2005
Location: It's a kind of magic.....
Posts: 6,649
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Quote:
Originally Posted by Gilles
Doesn't these cars have a fuel pressure regulator? Just curious..
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Early cars did, it was on the fuel rail, later models, it is in the fuel tank.
__________________
“Anything really new is invented only in one’s youth. Later, one becomes more experienced, more famous – and more stupid.” - Albert Einstein
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11-08-2023, 06:21 PM
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#7
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Registered User
Join Date: Dec 2009
Location: Orange County, CA
Posts: 1,996
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Quote:
Originally Posted by JFP in PA
Early cars did, it was on the fuel rail, later models, it is in the fuel tank.
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Thanks JFP!
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11-23-2023, 12:53 PM
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#8
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Registered User
Join Date: Aug 2017
Location: Tucson,az
Posts: 766
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Installed fuel pump,Great pressure now..but still a no start..so crank sensor next after that...who know's , hopefully crank sensor is it ! Happy Thanksgiving !!
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11-24-2023, 05:16 PM
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#9
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Registered User
Join Date: Aug 2017
Location: Tucson,az
Posts: 766
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Installed crank sensor..back to cruising 
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