Yes, you should have no trouble driving with the P0456 code. It doesn’t cause any performance issues because the fault is related to the emissions system. It’s still best to have it fixed as soon as possible so you don’t fail an emissions test, put more pollutants in the atmosphere...
This issue can also lead to several trouble codes, such as P0440, P0442, P0443 and P0449. What Causes A Check Fuel Cap On A Honda Accord? Most often, the message reveals that the gas cap is loose or damaged. It can also mean that you filled up the fuel tank while the engine ...