Thread: Evap purge valve operation
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Old 03-17-2015, 10:52 PM
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DaveW DaveW is offline
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Location: Tynong North, Melbourne,, Vic
Cobra Make, Engine: Classic Revival CR3514, LS3, Dual Quads, Holley Dominator EFI, TR6060, VE 3.7 LSD, AP Racing Brakes, 17x8 & 10 Custom Dragway Billet Wheels.
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Default Evap purge valve operation
Howdy Folks,
Anybody got the smarts on when the evap purge valve operates.
My valve is a combined Soloniod/valve unit, (standard GM LS3)
valve is normally closed,
Tested it and looks to be good, and doesnt leak when closed.
Obviously the ECU triggers it, but just interested what causes it to trigger, TPS, RPM or a combination.

Any thoughts?
Dave
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