Question about 2006 Honda Odyssey

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Check Gas Cap warning light

I have a 2006 Honda Odyssey and a warning message of "check gas cap" came on. When I read the manual and follow the trouble shoothing to clear the error, nothing works. I've put more gas in, re-tightened up the cap until I hear the click noise. I've also tried to manually clear the code by pushing the button just like the manual says. I still have the error. I also read in the manual that sometimes it can take 3 days before the error will clear on it's own, but it's been 4 days and it is still giving me the error.
Any suggestions?

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Replace the cap - it's only about 10 bucks at AutoZone. They told me the same thing about taking time to clear. I disconnected my battery for 10 minutes and it went off. Make sure you have the radio code as it will need to be reset after disconnecting the battery. It should have come with the car but the dealer can provide it.

Posted on Aug 07, 2009

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I have honda odyssey and the service engin coms on and the cod is p1456 so ineed to figur out thanks.


This probably means:
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  • Usually this is because your gas cap was not fully tightened. Be sure to turn it until you hear a click.
  • After you tighten the cap, it might take a couple days of driving before the light goes-out.
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Mar 03, 2011 | 2000 Honda Odyssey

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P1456


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.

Dec 15, 2010 | 2001 Honda Odyssey

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was the gas cap loose? if it was, then it may take a few days to go back off. It it was tight and good, then you have other problems. it may be covered under warranty/

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If your gas cap is tight, it means you have an EVAP system leak somewhere. You would need to check all the EVAP hoses, or run a smoke test.

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