Hey just bought a 2001 Prius my first hybrid car. I have 2 check engine codes that come up p1636 and p3002. I have done the research and found that they are related to the communication between engine ECU and HV ECU. I have replaced the HV ECU and I have also picked up a new agm optima battery but the codes still come back. I need to pass smog into order to register the car. So please help me out with this. I have alrdy done the 2 most common fixes I have also checked all connection's and everything nothing else is wrong. Thank you
