Question ok the back of the b20 doesn't have all the sensors I need for instance there is nothing to run the fans the oil light sensor is there but I think that's it so what is everyone using to run there fans?

 

Run the wires from the back of the block to the thermostat housing fan switch of the B20. You are planning to convert to MPFI correct?

 

Already MPFI its just obd0 iam doing the b20b vtec swap which doesn't have anything on the back of the motor that my first gen b16a has so iam just trying to get my fan working like stock or any other way I can get it to work btw its also going to be driven on the street from time to time and dragstrip use.

 

Wire the block fan switch wires to the thermo housing switch.

 

Ok ill give it a shot thanks.