I had to replace the evap canister and the solenoid vlv both, and then run a hose from the solenoid vlv all the way up to the engine compartment airbox on the filter side .
I had to replace the evap canister and the solenoid vlv both, and then run a hose from the solenoid vlv all the way up to the engine compartment airbox on the filter side .2010 Frontier
Threw the PO448 code. Replaced the vent valve solenoid with a new one and reset the check engine light. Was good for a couple days and then back on again.
What else can be checked/cleaned/replaced in an attempt to get rid of this light?
Thanks