I get fuel smell in my exhaust. Have since I bought it. I did the plenum and all the sensors 5 years ago. my O2 sensor plugs and wires are pretty new. I have new Mopar IAC and MAP. The crank sensor is some off the shelf model probably 4 years old. I do not remember the name of but it did improve how the motor ran when I installed it.
I am not a natural mechanic though I am good with tools. I got 15.5MPG last tank of gas which is an improvement over the previous mpg.
Where might I look to find the reason gas is not burning fully? I expect that would also increase my MPG's.
Thanks

 

Usually, for that kind of thing, I look at the O2 sensors. What brand did you install? (These trucks are notorious for not really liking the bosch sensors.

 

I changed out my O2 sensor 2+ years ago. I recall many advising me to steer clear of Bosch. I went with NGK. They are OEM.

 

It's NGK, not yet 2 years old.

 

Hhhmmm.... That shouldn't be a problem then. What spark plugs ya got in it?

 

Champion copper. Wires are 8mm off rock auto cap rotor not very old. I think they are same age as the wires, maybe two years.

 

Reset the computer. Let it re-learn how to run the engine. Give it some time, see if anything is different.

 

How many miles on he engine? What temperature thermostat are you running? Does it get up to the middle of the temperature gauge or does it hover around the low point?

 

I have the 195 T and it comes up to before middle.
Wouldn't it have changed in the last few times I did that Hey You?

I'm going to hook up the vacuum to the tailpipe tomorrow and see if I have any exhaust leaks.

 

Hook a vacuum gauge to the intake somewhere and see what your engine is pulling.