D2 Flashing Red

[VtecGarage]

Okay so when I plug the hondata S300 into my computer I have a solid green light on D4. D3 lights up for a second then goes away and D2 starts flashing red. My upload to ecu button is greyed out. I cannot make any changes to the ecu. I cannot live datalog either. I do have the J1 jumped and J12 cut. This is installed in a P72 ecu. The Hondata S300 serial is 47445. I did get this ecu with the car. Previous owner said that he was unable to ever get the car to run with this ecu. I did not install this in myself. What can i look for? Im really wanting to fix this instead of buying another S300. I have the lastest version and my drivers are up to date. Ive even uninstalled everything and reinstalled Smanager and drivers. I can get the car to start but it runs terrible. Any ideas before I have to end up buying another?

[VtecGarage]

I also forgot to mention with the key on D2 is not flashing red at all. I have a green light next to the usb. But cannot make any changes. I cant read tps either

[VtecGarage]

Also with my laptop on plugged in and car off I cannot pull the S300 information either. When I take the ecu out of the car and plug it into My desktop PC it says online but cannot make changes. But I can see my S300 information with it plugged into my desktop

[Spunkster]

What is the full part number on the ECU?

From Help, About, what is the version of software you are using?

Have the capacitors been replaced in the ECU?

[VtecGarage]

Software version 2.8.1.0 The ecu part # is 37820-P30-A00. Sorry I was told P72. This ecu does have a Knock sensor board in it. I am not sure about the capacitors being replaced since I received this with and car I purchased last year. They appear to be original to me but I'm not sure

[VtecGarage]

Spunkster the capacitors appear to be original. Original solder is still on them. All the capacitors are Brown in color

[Spunkster]

I would recommend replacing them as they are well past their life expectancy: https://www.hondata.com/products/access ... acitor-kit

[VtecGarage]

I will try this thank you