2004 crv light code

I have a 2004 honda crv that the engine light came on, I had a guy check the computer, the code read sensor 1 bank 1. The car is running fine, you drive a couple tanks a fuel through it and the light goes away, and a couple more tanks of fuel the light comes back on, this has happened about 3 times in the last 3 or 4 months?
any thoughts
thanks dude

I have a 2004 honda crv that the engine light came on, I had a guy check the computer, the code read sensor 1 bank 1. The car is running fine, you drive a couple tanks a fuel through it and the light goes away, and a couple more tanks of fuel the light comes back on, this has happened about 3 times in the last 3 or 4 months?
any thoughts
Occasionally I get an annoying light on the dash for not tightening the gas cap on beyond a few clicks. Now I press down and make sure it clicks 5-10 times to avoid this annoying warning. My other vehicles do not require this extra step. Hope this helps.....