o2 sinsor replacement on 1996 Acura TL

I REPLACED THE REAR O2 SENSOR AND THE FLUE FILTER AND NOW THE CAR WONT START I HAVE CHECK ALL THE FUSES AND EVEN UNPLUGED THE 02 SENSOR AND IT STILL WILL NOT CRANK.

Asked by for the 1996 Acura TL
1 answer
Did you check the battery connections if the battery connections arent tight the car won't crank and when you replace the fuel filter make sure its on the right way and prime fuel pump first to build pressure back up then start