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Old 07-27-2020, 01:32 PM   #13
Greenhornet2

 
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Drives: 2011 Camaro 2SS LS3 Whipple
Join Date: May 2019
Location: Connecticut
Posts: 1,925
High pressure pump will only work if it has adequate fuel supply. Have you tested line pressure before the high pressure pump to make sure the high pressure pump is being supplied enough fuel? After that I'd be looking at the injectors themselves possibly leaking down
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