1994 C280 starting problem
 

I've just finished the wiring harness replacement at my indie shop.

I have already completed two OVP replacements and one fuel pump relay replacement.

Still having starting problems. What I've noticed (and others standing around the vehicle at the time it starts) is that there is a distinct fuel smell from the exhaust...very strong.

Fuel mileage has not dropped off too bad. I could normally get 400 miles on one tank, now I'm around 350-360 miles per tank.

Is this fuel injector problems? Any thoughts??? Thanks.