Can anyone tell what sensor is this? when i took it out one time, antifreeze came out. i've got a 98 gsr swap in my crx. it has aluminum foil around it since it's broken. i want to fix it, but i'm not sure what it is...

here is a pic. You can see where it is relative to the distributor:


here is a closer shot:

 

coolant temp switch?

 

Coolant temperature sensor.

 

coolant temperature sensor

 

thats the fan switch

 

which is the coolant temperature sensor, it tells the ecu when to turn the fans on cuz the motor is too hot.

 

The ECU has its own temperature sensor. The ECU has nothing to do with the fan circuit at all.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by mmuller &raquo;</TD></TR><TR><TD CLASS="quote">thats the fan switch</TD></TR></TABLE>yes it is

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by RedSiHatch &raquo;</TD></TR><TR><TD CLASS="quote">which is the coolant temperature sensor, it tells the ecu when to turn the fans on cuz the motor is too hot.</TD></TR></TABLE>it is on the dizzy side of the head

 

how is it broken, is the thermostat housing cracked, or is the sensor bad....why is it covered in foil. if the sensor is bad, replace it-it controls the fan, which you will want to work if you dont want it to overheat (should be under 60 bux from dealer).

 

Its the fan switch.. I think Honda calls it a Thermoswitch..