LT1-LT4 Modifications 1993-97 Gen II Small Block V8

fuel pressurre

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Old Apr 4, 2011 | 08:54 PM
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LigHtEmUp01's Avatar
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Default fuel pressurre

so in my book it says my car should have 43-47psi of fuel pressure and its barely 40. its got a new filter. im having issues with it right now and i had it tuned and the guy tried giving it more and more fuel and it just kept running lean. so im thinking a pump will fix it, what are your guys opinions thank. o and pump and injectors are stock right now
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Old Apr 4, 2011 | 09:00 PM
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l 95 Trans Am l's Avatar
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Originally Posted by LigHtEmUp01
so in my book it says my car should have 43-47psi of fuel pressure and its barely 40. its got a new filter. im having issues with it right now and i had it tuned and the guy tried giving it more and more fuel and it just kept running lean. so im thinking a pump will fix it, what are your guys opinions thank. o and pump and injectors are stock right now
Whats the mileage on the pump? Its stock I assume right?
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Old Apr 4, 2011 | 09:03 PM
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Originally Posted by LigHtEmUp01
so in my book it says my car should have 43-47psi of fuel pressure and its barely 40. its got a new filter. im having issues with it right now and i had it tuned and the guy tried giving it more and more fuel and it just kept running lean. so im thinking a pump will fix it, what are your guys opinions thank. o and pump and injectors are stock right now
Dumb question, but you did pull the vac line from the FPR before you measured the fuel pres? Also, are you seeing it drop under load?
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Old Apr 4, 2011 | 10:01 PM
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Originally Posted by DAVE00
Dumb question, but you did pull the vac line from the FPR before you measured the fuel pres? Also, are you seeing it drop under load?
yea i did and it would drop maybe 5 psi once u gave it more gas but wideopen it stayed around 40 and maybe would go down to 38. its a stock pump and i have no clue about mileage
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