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What is the purpose of the evap system?

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Old Aug 10, 2006 | 11:17 AM
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Default What is the purpose of the evap system?

As asked, what is the purpose of he evap solenoid? Is it really necessary. What happens if it is removed.

Bill
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Old Aug 10, 2006 | 11:31 AM
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I know, search is my friend. Found out.
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Old Aug 10, 2006 | 11:31 AM
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https://ls1tech.com/forums/showpost....7&postcount=10
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Old Aug 10, 2006 | 01:07 PM
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It just vents the evaporated gasoline fumes into the manifold to be burned instead of into the atomosphere.

I just deleted mine last weekend. I removed the codes w/ HP Tuners, then removed it from the manifold and capped it. Then I unplugged the solenoid and removed it from the manifold. Then I unclipped it's hose from the factory hardline, slipped a piece of 3/8" hose over that, and routed it out of the way, under the fuse boxes, and the hose is just hanging out in that space the AIR pump used to be.

I also deleted the codes for the gas tank pressure sensor. I'm not sure if I needed to or not, but said oh well lol. I know the SES light will go off if the gas cap isn't screwed on tight, so I figured there would DEFINATLY not be any pressure in the system with an open vent.
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