i got a bosch direct replacement o2 sensor for my ole girl and after taking the battery off i did the work and connected everything back up. I went to start my car and it will crank but it wont fire. So im kinda lost ive 3x checked the connection and even jumped the battery. Im guess the motors not getting fuel. any help would be greatly appreciated i dont know where to heck and how to. thanks in advance.

Have you checked the multiple ecu/mpi fuses?

did you have to switch connector from one to the other sensor?

Rich