i prevously had a b16 in my 90 crx. i have now changed the b16 block out for a ls block. what im confused about is how do i wire up the sensor on the thermostat housing (think its called the thermoswitch)? also im using an itr intake manifold, the problem is it has 2 extra vaccum lines on the top of it im not sure what to do with. should i just plug them or is there something im missing.

 

i used the ls thermo housing b/c it does not have the sensor

 

just extend the fan switch from the block of the block to the thermostat housing, and then use newer fan switch plug, good luck Jason

 

wait im a little confused about what your saying here. correct me if im wrong here but are you saying to plug the original plug that goes to the fan into the thermostat housing then splice into it a new set of wires and plug that into the fan??? just want to make sure im understanding this before i do anything.

 

Find the plug on the LS wiring harness that goes to the thermostat housing sensor, cut it off. Take the big two prong plug from the back of the block that you are using now, cut it off. Splice the new plug into your old harness with a bit of extra wire to reach. The wire colors do not matter for this plug. Done.

 

the problem is there is no plug there at all. im using the original crx harness and there was no sensor on the thermostat on my original motor. i have a plug to put on the sensor i just need to know which wires to splice them into...