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Old 09-04-2019, 02:14 PM   #26
pcampbell
Scooby Specialist
 
Member#: 437670
Join Date: Jan 2016
Location: VT
Vehicle:
2005 2.5 SC OB

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I think they switched to returnless in 2006 for many cars, A return style has 3 lines. 1 is supply, 1 is return and 1 is Evap. You can tell by going to RockAuto and looking at the fuel pump module, or.... in engine bay 3 hoses would be return style. I have no idea how to tune a returnless system but I am sure many people have done it successfully.
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