Check Engine Light - Fuel Cap related

I would try replacing the fuel cap. the seal on the cap can go bad. Least expensive way to try to fix the problem. Scott

You don't state the codes and fuel cap related doesn't do anything to resolve the problem. there are several codes in the EVAP system and there is extensive troubleshooting charts in the service manual. If you plan on fixing it yourself buy the manual or take it to the dealer and tell them to fix it right and stop guessing. Of coarse replacing the gas cap and inspecting the whole gas/evap system for damage should be your first item on the list.....

Any leak in the vapor side of the fuel system will bring in this code; it's just that the fuel cap being loose is the most common reason on cars that aren't old enough for the rubber stuff to deteriorate.

I failed emissions two consecutive years with my '85 Volvo because of failure of the fuel system to pressurize. Each time it was vapor hoses that had cracked in forsaken places, and I found them by rigging up a bicycle pump to a vapor hose.

In a 2000, the most likely cause of a leak that isn't simply an undertightened cap is a bad cap. A replacement cap is a cheap price for being at least able to rule that out. As another posted, it can also be filler neck trouble, but easy things first....

Mike

Chris B, did you ever get this sorted out? I have a similar problem, so I am interested in a simple fix if possible. The check engine light is staying on, and Honda repair garage says there is a sensor in the tank that when you overfill the tank, the sensor is damaged. They want $350 to replace the sensor, color me skeptical please!!!! A new fuel cap sounds a whole lot cheaper.

I've found that to reset the light, you have to disconnect the battery for a few minutes to reset the computer also. Have you found anything along these lines.

The car continues to get good milage, and passed a recent emission test, so I find it hard to believe that the problem is serious, but the light is annoying. Tinkerntom

With my 99 Accord I didn't need to disconnect the battery to reset the light & computer. I just pulled the fuse for the dome light & clock (passenger side of dash on side). My problem ended up being the Cat. Honda wanted over $800 just for the Cat so I bought one from Summitracing.com for about $140.00 and it has been fine now for almost a year. Good luck.