2009 Pontiac G8
Needed an under the hood EVAP purge valve. It's the solenoid that opens up when you are cruising to suck the fumes out of the charcoal canister into the intake. Old was stuck open and threw an Excess Purge Flow code.
Trying to clear OBD monitors. This is what I see. Anybody know what "dis" means? Have never seen it. I wonder if it's specific to GM? The scanner manual shows a similar screen but does not describe "dis".
