2000 gts, the simms are brand new out of box. I notice that there is sensors towards the front and back of the exhaust. I put the simms on the front senors connectors
That is way too funny. I'll bet you were freaking out wondering what the heck was wrong with the car. I know I would be if I didn't know the sims go in the rear.
A couple other things to note: gas goes in the gas tank, oil in the engine, and coolant in the radiator
I am just poking fun man! I know it was an honest mistake, and fortunately a mistake that wasn't a damaging one. You may have decreased the life of the front O2s now though, depending on how long you ran the car with the sims in the wrong place, that unburned fuel can contaminate the O2s.
In the future, don't hesitate to post questions on here if you're not sure about something. I'd rather you ask a stupid question to confirm something than not and end up with a blown motor. O2 sims, no big deal, but next time could be worse.