| I would check the fuel that you are using. If you are buying fuel at a filling station, the fuel should be ultra-low sulfur ( less than 15 pppm of sulfur). There is no way to get a significant sulfur smell (even without an oxidizing catalyst) when using ULS diesel.
If you are using additives or agricultural fuel (usually died red), then you will get a smell. I'd try a new tank of fuel labeled ULS and see if it goes away. Good luck and post a followup if you think of it. |