Ok here is the deal, on the back of my stock d16a6 block there is a two wire plug that is next to the oil filter. I think it is tapped into one of the water jackets (But I am not sure). The d16z6 block I am in the midst of dropping in doesnt have this plug. But it does that a two wire plug on the thermostat neck, which my d16a6 didnt have. Now what I want to know is am I correct to wire that part of the stock Si lomb into that plug (the plug on the thermostat neck on my d16z6 block)? It is 9:15am and I have to have the car running no later than 1:00 pm today. That is my problem, time. I hope I can get some answers before then. Thanks in advance...

 

BUMP!!!!

 

That 2 prong deal on the back of the a6 is your coolant temp switch. When the coolant gets hot enough it completes the circuit and your rad fans turn on. I'm not sure if that other plug on your z6 thermostat is the same switch or not. I would assume so, its just merely taking the temp from the thermo isntead of from the block. Wire it up, let it idle and see if your fans come on after 5-10min.

 

Yeah, the 92+ have the Fan Switch on the Thermostat Housing while the 91- have the two prong switch on the back of the block near the oil filter. Just cut off the two connectors on your harness and wire in a connector Plug (Same plug as EACV, TW Sensor, VTEC Switch)