How can I fix it?

I have couple code P2419 P0306 Are these 2 code same problem? I read some things about Evap canister . If I change it will be it ok?

 

Code P2419 Toyota Description 5 hours after the ignition switch is turned off, the leak detection pump creates negative pressure (vacuum) in the Evaporative Emission (EVAP) system. The Engine Control Module (ECM) monitors for leaks and actuator malfunctions based on the EVAP pressure. The leak detection pump creates negative pressure through the reference orifice. When the system is normal, the EVAP pressure is between 97 to 100 kPa(abs) [726 to 750 mmHg(abs) (Typical value)] and saturated within a minute. If not, the ECM interprets this as a malfunction. The ECM illuminates the MIL and stores a Diagnostic Trouble Code (DTC) if this malfunction is detected in consecutive drive cycles. The Canister Pump Module is attached to the EVAP Canister and contains the Canister Pressure Sensor, the Leak Detection Pump, and the Vent Valve.

I believe there was also a TSB for multiple evap codes on the early Gen2s. It recommended replacing the evap canister because water intrusion which is expensive.

The misfire code is likely either plug or igniter. Might reset that one and see if it returns.

 

Reference the evap code, I would inspect the vacuum around the intake. There is a small cube, or it's probably attached to the intake hose, but ensure hoses are pushed all the way in, sometimes hoses cracks and that small bit of a leak will have you chasing your tail and replacing unnecessary parts.

As per the misfire. Before you buy anything, I would take that coil and swap it with the coil on the other side of the engine. Reset codes or drive it around and see if the misfire code changes, or it stays the same. This will tell you if the coil is bad, or not. Also inspect your spark plug and ensure proper gap, if misfire remains. If it still remains, then trace electrical as there may be damage, but odds are it's the coil.