-96 944 B230FK ECU question

Hi, I’ve recently got into a bit of issues regarding the ECU in my car and I’ll probably need to buy a new one. Someone who had the car before me had switched to a ECU thats not correct to the car fully so it’s runnings poorly.

Just need to know what serial number ECU box I need to buy, Volvo 944 1996 B230FK. (not the ignition box, the other one the fuel box)

Thanks

This is a list on the Volvo owners club site. https://www.volvoclub.org.uk/faq/EngineFIComputer.html#ECUAMMReferenceChart

Your B230FK is on the list with one fuel ecu.