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Fuel Pressure Question

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

Fuel Pressure Question

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Old

Sep 29, 2007 | 05:43 PM

#1

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From: Kyle, TX

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Fuel Pressure Question

does anyone know what the factory fuel pressure should be at and what do ya'll have it set at after ya'll have done H/C. Because I have no idea as to what mine should be set at? THANKS!!!!!!!!!

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Sep 29, 2007 | 06:42 PM

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From: Chicago Suburbs

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don't mess with the fuel pressure, as no matter what you set to after a few cycles your pcm will recognize the difference and adjust to get it back to where it thinks it should be. basically you can not tune by adjusting fp like some other cars.

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Sep 30, 2007 | 02:57 AM

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From: Decatur, TN (N-W of Athens)

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Vacuum line pulled off, 43psi.

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Sep 30, 2007 | 09:07 AM

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From: Kzoo, MI

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vacuum line off should be about 44-45 psi MAX

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