Hello, I need help finding out were i should start fixing these issues, I have the codes (see image) and my truck starts but them stops after a couple of seconds. If anyone can help that would be great

P0456

 

The OBD-II trouble code P0456 indicates a small leak in a vehicle's evaporative emissions (EVAP) system:

The EVAP system prevents fuel vapors from escaping into the atmosphere by trapping them in a charcoal canister until the engine can burn them. When the engine control unit (ECU) detects a leak, it triggers the P0456 code and turns on the check engine light.

Some common causes of a P0456 code include: A loose or cracked gas cap, A small leak in the fuel tank, Damaged vapor lines, A faulty canister purge valve, and A cracked charcoal filter.

To diagnose an EVAP leak, you can use specialized equipment to apply pressure or vacuum to the system and monitor it for drops. If the code is caused by an air leak, you may need to replace the purge solenoid, filter canister, or both.