psegs80

I have a 98 jdm b18b engine in a 2000 civic dx (obd2b) with a p75 obd2a ecu (97 intgra Ls US) When I did the swap I didn't find any pinout at the civic ecu (a20) for the fan but it worked!!! When i plugged the computer to my car to get the error message I got no fan error and when I reset the computer my engine temp when way high and my fan doesn't work anymore!!!! What to do???

Pat