I have a problem with my fuel pump. Sometimes it works and sometimes not. I was wondering if hot temperature and really high humidity level could be the cause of the main relay not working properly cause it's really hot and humid here in montreal. I would also like to know where is the main relay on this car cause i'm new to honda.

Thanks guys

 

The relay is behind the changeholder on the left (below and to the left of the steering wheel). Usually the solder gets brittle and cracks bacause of heat cycles. Open the relay and inspect the solder joints. If you find a bad solder joint clean it and resolder the joint or buy a new one.

 

It is very likely your main relay. Here in Ottawa (2 hrs from Montreal for all you 'mericuns) I had to replace five main relays today. The damn tow trucks just kept coming and coming........ They really hate hot/humid/sunny weather.

Easiest way to find it is to go to the dealer, buy a new one, and then go back to your car and find the same part. It is located in the drivers side kick panel area.