I did a 98 2.5 to 2.2 swap. I sold the car, a few months later, the new Owner said they smelled fuel in the car.

 

I always use the original 2.2 canister up front. I looked over all the fuel lines including the fuel pump and sending unit. I could not find any leaks.

 

Anyone have an idea or had this problem before?

I always replace the fuel filter. So I suppose while you didn't mention it specifically that you did check all 3 hoses up there?

 

I'd check the most prone to leak fuel problem - the filler tube.

 

Doubt it's swap realted since it took so long to be an issue.

 

Just good old dry rot, a critter, or rust(filler tube).

Thanks, I'll take a closer look. Yes all the fuel filter hoses are hooked up and are in good condition.