Haasman,
Slight odor of fuel at tailpipe probably due to non combustion.
Fuel smell is higher in engine compartment.

Throttle body looks ok as well as linkage. There is a switch on the linkage. Will this keep it from starting if it is bad?

I am just about at my wits end on this. Usually I can figure this out with a minimum of help.

It was mentioned about a camshaft position sensor, the only sensor that I can see is down by the harmonic balancer.