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thermostat housing

Discussion in 'HYBRID -> ED-EF / DA' started by pugarex, Sep 21, 2005.

  1. pugarex

    pugarex Senior Member

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    Does any one here know if i need the connection that goes to what i believe is the thermostat housing on a Ls obd1? i swaped the b18a1 a 90 dx but the connections are diferent and the ls has 2 wire as for the dx has 3. do i need this connection?

    Ls 2 wires:
    1. Black
    2. Yellow/Green

    Dx 3 wire:
    1. Yellow
    2. Yellow/White
    3. Green/White

    any help is greatly apreciated.
     
  2. jlicrx

    jlicrx Senior Member

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    the connector at the thermostat housing on the OBD1 engines is the cooling fan switch - 2 wire connector with yellow/green and black wires - on OBD0 engine, the cooling fan switch is on the back of the block next to the oil filter - 2 wire connector with yellow/green and black wires, but not the same type of connector as on OBD1

    the only 3 wire connector, that i am aware of, that has yellow, yellow/white and green/white wires is for the EGR valve lift sensor on the CRX HF or on auto transmission DX cars in Calif
     
  3. pugarex

    pugarex Senior Member

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    My dx used to be auto and i also live in southern california (bakersfield). do i need these wires hooked up or do i just leave them alone? if i need them how do i connect the three wire to the two wire?
    thanks..
     
  4. jlicrx

    jlicrx Senior Member

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    the wires are for 2 completely different sensors - if you don't have EGR valve on the B18, then you don't need the wires - you will need the 2 wire connector for the cooling fan switch
     
  5. pugarex

    pugarex Senior Member

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    i have the two wire connector from the ls harnes, but i cant figure out how to wire it to the dx harness do i use the EGR wires for this or is there another way?

    thanks.
     
  6. jlicrx

    jlicrx Senior Member

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    your DX harness should have a 2 wire connector right by the oil filter with yellow/green and black wires - it is actually 2 wires that have a big rubber boot on them, not your typical connector - you need to extend these wires over to the thermostat housing and attach the LS connector to plug into the cooling fan switch sensor that is on the thermostat housing - the EGR wires are not needed
     
  7. pugarex

    pugarex Senior Member

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    then i dont need the connection next to the oil filter right?
    thanks
     
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