Can't fill gas tank! Update

[outatime]

Hi All

Still not able to fill more than a gallon without it shooting back up at me, Its not the purge valve! I found it opening/sucking and purchased a AUTEL Scanner to manually open it so its not pcm/electical that I can see, its good which now puts me back to trying to find what's blocking the tank from venting. I have replaced the big charcole vent canister on top of the tank and another vent valve, we did blow out all the pipes that we could see, am I missing something? Is there any possible way this has somethings to do with the fuel pump we installed? This wasn't an issue till we replaced it? I bought this one off Amazon. Amazon product ASIN B07F6XV9HF
No other engine codes at the moment either apart from a tire sensor but that's the least of my worries.

 

[Mr. Alligator]

First, have you checked the inlet side, especially the filler tube hose? Kinked or crushed? Check all the way from filler to fuel tank???

 

[outatime]

First, have you checked the inlet side, especially the filler tube hose? Kinked or crushed? Check all the way from filler to fuel tank???

Thank you sir, sorry I pressed submit before I finished the post. It was ok at the time of dropping the tank but I can check it again.