Yes it does, but you say the frps and the wiring both tested fine, therefore the only remaining option to be at fault is the ecu.
You said the frps showed 1.3v, this represents ~300bar, so you know the frps is reading correctly. However, the ecu says 0bar pressure, which means the signal isn't being correctly read. It can't be wiring at fault as you've tested that too, therefore it must be the ecu. According to what we've been through here anyway.
You said the frps showed 1.3v, this represents ~300bar, so you know the frps is reading correctly. However, the ecu says 0bar pressure, which means the signal isn't being correctly read. It can't be wiring at fault as you've tested that too, therefore it must be the ecu. According to what we've been through here anyway.