evap emmissions

I have a 2018 encore 1.4l. The check engine light came on, it was Code p0449. I replaced the EVAP vent Solenoid valve control circuit. I cleared the engine light with my FIXD scanner in the car. The next time I tried to remote start the car the car turned on and right back off. Any help with...

so far. Other monitors are clear. Confession: I had a rusted evap line, the one that goes from carbon canister up to the engine. I "fixed" it by using a fuel injector hose to splice over the rust break. This was months ago. If I had an EVAP problem, it SHOULD give a code and set the CEL on, not...

My 08 Lucerne CXS has the P0449 Evap Vent Valve/Solenoid Circuit code. Car has the Northstar with just over 170K miles. MIL Light comes on fairly quickly again after clearing. Would like to check the Evap Vent Valve/Solenoid but haven't located it yet. Jacked car expecting it to be near the...