2006 Honda Odyssey: Check fuel cap and engine surge?

Check fuel cap message comes up and Engine surge while driving.
Fuel cap gets cracked or worn out or gets loose and cause emission leak.

In this case before having the dealership do any diagnostics, you need to install a Honda fuel cap. Most aftermarkets fuel caps don't seal properly which will cause an evpaorative emission leak in the system due to poor seal.

If, after installing a factory fuel cap, you still have an issue, then the system will need to be smoke tested for where the leak in the evaporative system is that is still setting the warning message and causing surge you feel.

This will help.
Thanks.

For All types of Car models and brands help 
Go to Newly Launched

FREE Car repair guide? 
http://technoanswers.blogspot.in/2012/03/car-repair-guide.html 

& 
Complete Car repair Help FREE? 

http://repairhelpcenter.blogspot.in/2012/03/complete-car-repair-help.html

Stuck heater box door causes no heat from vents?

Heat wont blow through heater or defroster vents.
Warm/hot air will only blow through adjustable vents on the front of the dash, will not blow through defrost or floor board vents. However, cold air (from air conditioner) will blow through all vents - including upper dash defrost vent.

Got it to the mechanic
The door in the heater box was stuck. It is located under the dash on the passenger side. Repairing that stuck door solved the problem.

Same problem faced again
This time changed the gas cap and got heat all around. something about pressure.