new o2 sensors still aren't working

Just replaced both o2 sensors because the code said they weren't working. New sensors still aren't working (and ngauge says they aren't sending information).

I just replaced the engine.

Any ideas what I could have cut or pinched that I can check? Could it be that the rear o2 sensors aren't installed? I'm also getting an evap code.

Thanks

so, connectivity is good between one of the o2 sensors and the pcm connector (checked all 6 pins). PCM pins aren't bent and o2 heater circuit works.

Not sure if this helps but I once had repeated codes for 02 sensors. I replaced two then all four ending up with same error codes. What we discovered was the harnesses failed..or were garbage. In fact, when we examined one harness it said " Made In Thailand". Needless to say the shop who did my headers were cutting corners. The new shop ultimately solved the issue by swapping in O2 sensors/harness used in the Raptor. Three years with zero issues. G<ood luck Bud.

It was fuse F49, was tagging off that for the stereo. It wasn't properly seated.
That controls the evap and reverse lockout also. 2 codes the car was also throwing.