I have a 1998 Nissan Sentra GXE 1.6 with a p1448 and p0440 error codes. Can anyone help? Are there visuals I can look at?
Start by inspecting the EVAP Canister Vent Control Valve. The valve is attached to the EVAP Canister on the back of your Sentra. If all the hoses are connected OK and there are no damage hoses, then you may have to replace the valve.
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