2002 acura TL-s engine code p1456.

Look at this information and don't ever over fill the car as it can push fuel into the emissions canister and cause problems.
http://honda-tech.com/honda-accord-1990-2002-2/98-accord-problem-code-p1456-2460060/

P1456 is a Honda manufacturer specific code for Evaporative Emissions Canister Leak Detected. Honda has a Technical Service Bulletin about that code that you should read but most often that code is caused either by a bad seal on the gas cap, or the cap no being tight enough. Either way, DTC P1456 isn't related to the vehicle not starting so you'll need to look elsewhere for the cause of the no start condition. First things to check are to see if there is fuel getting to the engine, and if there is spark getting to plugs. Hope that helps.

Just replace the evap purge valve.

Blinking check engine lights usually indicate the problem is severe enough that it could be doing damage to the catalytic converter. Typically engine misfires will cause this to happen. Check to see what codes caused the light to come on. Post them here and I'll be happy to help you further

I’m happy to assist further over the phone at https://www.6ya.com/expert/jeremy_d728a59f986299fa

that code is for the EVAP system, try replacing your fuel cap first, other causes are broken vacuum lines.

code P1456 set when there's small leak in the fuel tank system.
Most known reason for P1456:
-Didn't tight fuel cap on until it click for more that 3 time after fueling up and drove the car too long with cap loose.
-or a bad gas cap.
I'll try tighting the gas cap.
clear check engine.
if code come back, replace gas cap and clear check engine light again.

2004 Honda Pilot engine light came on this morning. Last bought gas 5 days ago. Auto Zone checked and found code P1456, emission control system leak detected (fuel tank system)
Four options;
1) Loose fuel cap
2) Vapor canister saturated
3) Failed vent solanoid
4) Failed purge solenoid

Thanks.

Did you change the gas cap with a Honda gas cap? Tighten it at least three clicks?
Also, Honda recommends that you never top off the tank when getting gas (only go to the click-off of the pump; otherwise you can get back flow into the system that will cause the code).
Tightening or replacing the cap will not immediately cause the light to go off; it can take up to three days of driving for the light to reset.
To check if your readiness codes (emission system) are set, turn the ignition to ON (II), without starting the engine. The Malfunction Indicator Lamp will come on for 20 seconds. If it then goes off, the readiness codes are set. If it blinks 5 times, the readiness codes are not set.
You can, of course, try resetting your engine light to see if it will come back on (which it probably will). I believe the procedure is:
Turn off the engine.
Press and hold the Select/Reset knob (odometer) in the instrument panel, then turn the ignition switch to ON (II).
Hold the knob for approximately ten seconds until the indicator resets.

Hope this helps you.

this codes no much problem,maybe a momentany fuel cap unclosed, to reset disconnect the negative battery terminal few minutes , then reconnect and start engine,good luck

that is your check engine light. you need to take it in and get the codes checked to find out whats wrong. could be as simple as a loose gas cap.