i have a pge -315 ecu can a pge-a57 work ? my ecu is acting up and needed to buy a new but cant find a matching ecu so i got a a57 and put it on but it didnt start wanting to seee if the ecu i got is bad or that it wont work if any one can help please help

my ecu starts and runs fine but the transmission goes funky sometimes it shifts good but then it will while drining kick into neutral or seems so but im still in gear and something i can switch gear and it may work or not but if you turn car off and put it in gear and will go i also got a cel code p1607 powertrain control module fault a so thats why i think its the ecu so i need help