GTX 4 TEC SC 2003 error P1202

[Corso]

Hello everyone, I have a 2003 GTX 4 TEC SC after 4 minutes (not one more or less) I have error P1202. I have already changed both oil pressure sensors but it still does it to me. So I assume that the only cause of the problem is the TOPS? Do you think I am on the right track?

Is it possible to bypass the TOPS valve to see if it is the one causing the problem?

Thank you and have a nice day everyone.