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Discussion Starter #1 (Edited)
My wife just called me and the engine malfunction indicator has come on the dash panel. It's the engine symbol with the red/orange light. She put gas in it two days ago and I'm hoping it's because the cap is not tight. She never puts gas in it so I would not be surprised if she didn't tighten it. She is on her way home now.

Anyway, if that is not it, any one have any ideas of what I could check.

BTW, we have an 06 EX.

edit: We are leaving in 6 days for a 1200 mile round trip. So any help would be appreciated.
 

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You really need get the diagnostic code to know what it might be. Autozone might be able to plug into the system to tell you the code.
 

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Discussion Starter #3
I checked the owners manual and that symbol is for a loose gas cap or some type of emissions problem. The cap was loose so hopefully that was it. The light is still on but the manual says that it may stay on for a couple of days. So only time will tell.
 

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cid03 said:
I checked the owners manual and that symbol is for a loose gas cap or some type of emissions problem. The cap was loose so hopefully that was it. The light is still on but the manual says that it may stay on for a couple of days. So only time will tell.
same thing happened to use a few weeks ago, we re tightened the fuel cap and it went away after a few days.
 

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eneka1 said:
same thing happened to use a few weeks ago, we re tightened the fuel cap and it went away after a few days.

Found this on a Honda Forum for anyone else that experiences this.

NOTE: This article applies to ’05–06 Accords, ’06 Civics, ’05–06 CR-Vs, ’05–06 Elements, ’05–06 Odysseys, ’05–06 Pilots, ’06 Ridgelines, and ’06 S2000s.

If a vehicle’s fuel fill cap is loose or missing, and the ECM/PCM detects an EVAP system leak when it runs the EVAP monitor, the CHECK FUEL CAP message appears on the information display when the engine is started. (On ’06 Odyssey Touring models and future Honda models, it’s the TIGHTEN FUEL CAP message.) A temporary DTC is also stored in the ECM/PCM’s memory. If this happens, there’s really no need for the owner
to bring the vehicle in for service. All he or she has to do is shut off the engine and make sure the fuel fill cap is in place and it’s properly tightened (it’s one or three clicks, depending on what’s written on the cap).

Although the owner can cycle the message from the display with the reset button (the actual button name varies by model), the temporary DTC that’s setting the message is still there. This means the message never really goes away. It can be cycled back with the reset button, and it comes on again if the ignition switch is cycled or the engine is restarted. This message keeps coming back until the EVAP monitor runs again and it
finds no EVAP system leak. This could take several days, even weeks, depending on how often the vehicle is driven.

If, when the next EVAP monitor runs, the cap wasn’t tightened or there’s another EVAP system leak detected, the MIL comes on and the message goes off. A permanent DTC is now stored in the ECM/PCM’s memory. If the owner now tightens the cap, the MIL should go off after the next EVAP monitor run, yet, this could still take days or weeks. If the MIL is still on after that monitor run, then it’s time to bring the vehicle in for service.
If the vehicle comes into your shop with the fuel cap message or the MIL on, make sure the fuel fill cap is in place and properly tightened. Record the DTC, then clear it with the HDS, and run the EVAP system function test. If there’s still a problem, press on with normal troubleshooting
 
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