Trouble codes P0108 P0193 P0453?

So I'm going to actually go do the alternator test I just got the car started this morning It hasn't started the past few days I had got the new main relay at like I told you and apparently it was not good because I ordered a OEM one and then it was supposed to be here in a couple days they got delayed so I ordered aftermarket one that could be here quickly just to rule that out or whatever anyways then real one came yesterday and I got the car to start today after I've been going through the wiring for the map sensor in the fuel rail pressure sensor both are testing high resistance on the ground wire even after I replaced the one to the ECM it still showing high resistance. So my question to you is I know that the map sensor and the fuel tank pressure sensor share a power line to the computer as well as the fuel rail pressure sensor and I think it's the AC transistor or something like that also spliced into the computer side. Is there any correlation that links the map sensor in the fuel rail pressure sensor together to make them both have high resistance in the ground wire to the connectors like do they share a fuse or relay or something like that that could answer why one wire was completely rude placed and still is having high resistance? I already cleaned all the chassis grounds and tested all of them and they all came back good so I know that's not it I've looked at the wiring diagrams I have and that's all that I found was that both components are spliced to one other component but not that they were actually related at least in wiring so I'm not sure if they're is another logical answer to that. Also I replaced ECT sensor. The cooling fan issue is resolved either from ECT sensor replacement or more likely The OEM main relay since first and second were bad so that doesn't come on now that I've put the OEM one in there and the car wouldn't turn over or start but now it does still sounds horrible but installs out but it does start again so I'm kind of the place we left off the other day. I actually have a new harness coming tomorrow for the injectors and fuel rail pressure sensor of course that has another connector that goes in the middle between the connector and the ECM so even replacing that I don't know for sure will help with the ground resistance on that component I may have to end up wiring the other end of it too to the computer but if you could give me any info if the map sensor and fuel rail pressures sensor not the fuel tank pressure sensor those two are related but the fuel rail high pressure sensor if there's any thing leaking that with the map sensor that I would appreciate it. Thank you

So I'm putting in new wiring to the crankshaft position sensor and I am having trouble finding the terminal pin size for the ECU connector. Can you please see if you can locate the size of the pins I need to order here is a picture of the connector.

Approximately 2mm squared x 16 mm long

Also this was the last post I got from you which was verbatim what I sent you I don't know what happened there.

Yes it was did you have an answer?

Ok. Thank you very much. This has been a nightmare.