strong smell of unburned gas in exaust

[Vxlhammbone]

Very strong unburned gas smell but no check engine light is on. Any ideas from anybody would be cool. I commute 100 miles a day, so of I can improve fuel economy that would be great. I have already changed spark plugs, wires, and air filter. 2.3 L. 214,000 miles.

 

[Redneck_ranger]

You're running rich. I would've been able to give some suggestions, but I can't remember what the hell I was going to say... It'll come to me though

 

[Vxlhammbone]

Yes, definitely running rich, but what to do? It's fuel injected, and no check engine light. Egr, or o2 sensor would have sent me a check engine light.