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hi every one< i have a dohc zc engine and am just hooking up my wiring harness there appears to be 4 temp sensors on this engine...

1.) on back of the block below intake mani
2.) on thermostat housing
3.) single wire on the head under dizzy
4.) two wire on the head under dizzy

so witch ones are for what -- radiator fan switch, ecu input, dash gauge ect... --
 

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The engine coolant temperature sensor is for the ECU to calculate warm up enrichment, make sure that one is working right and connected! If the car runs rich all the time it can damage the engine and waste fuel.
 
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