I have a b20vtec in a 88 CRX almost complete my question is what to do I do with the cooling fan switch since the b20 does not have a location for it on the back of the block.
Any suggestions would be helpful.

 

On the back of the block? Should be on the thermostat outlet man.

 

What you are referring to is the actual sensor that is variable and sends the ECT to the ECU. Im talking a switch, but maybe im wrong. Anyone else.

 

ect sensor for the ecu is on the side of the head. the fan switch is located on the thermostat housng on all the obd1 and newer b motors.

 

Thanks for the help guys. I have an OBD0 style of thermostat housing so thats why I didnt know b/c there is no switch there. The two housings are different in that the OBD0 has an extra coolant connection for the Manifold. I looks like though I can use the front end of the housing from the OBD2 housing and connect it to the old style.