P0080 Fault in 2004 Chevrolet Tahoe: Diagnosis and DIY Repair Guide

I own a 2004 Chevrolet Tahoe and recently completed an intake gasket replacement. After the repair, my vehicle is displaying a P0080 diagnostic code. I'm concerned about a possible leak in the fuel vapor canister located near the gas tank. Does this leak directly cause the P0080 code? Where should I start inspecting for the issue? Is this a do-it-yourself (DIY) repair, or do I need to take it to a professional mechanic? I'm very nervous about this and have done my own repairs before—any guidance would be greatly appreciated. Please confirm if the fuel vapor canister leak is related to the P0080 code.