LJ78 Temp Sensor - 1 Pin and 2 Pin Connector (1 Viewer)

[nomadtribe]

I have been searching high and low for a replacement temp sensor for my LJ78 2LTE.

As per the part numbers - 89422-20010 and 89422-35010, they are all 2 Pin connectors.

The current sensor is only a 1 Pin connector. That said, my Gauge connector is also 1 Pin and have been replaced with a new sensor today (83420 in image below).

I also have a Thermo Temp Switch sensor that is broken. After some reading, it seems this sensor relates to the A/C. Is this correct. Part numbers are 88790-60050 / 88790-22060.

Coming back to the temp sensor, 1 Pin. I take this is a power input and the housing acts as a ground? Saying that, can I convert the 2 pin in this way and just ground the sensor?

Is the 89422-20010 and 89422-35010 also the ECU Temp Sensor? As per below image, there are no sensor below the manifold - All sensors are located in the thermo housing (3 x sensors in total).

Will appreciate your wisdom

 

[ToyotaMatt]

I have been searching high and low for a replacement temp sensor for my LJ78 2LTE.

As per the part numbers - 89422-20010 and 89422-35010, they are all 2 Pin connectors.

The current sensor is only a 1 Pin connector. That said, my Gauge connector is also 1 Pin and have been replaced with a new sensor today (83420 in image below).

I also have a Thermo Temp Switch sensor that is broken. After some reading, it seems this sensor relates to the A/C. Is this correct. Part numbers are 88790-60050 / 88790-22060.

Coming back to the temp sensor, 1 Pin. I take this is a power input and the housing acts as a ground? Saying that, can I convert the 2 pin in this way and just ground the sensor?

Is the 89422-20010 and 89422-35010 also the ECU Temp Sensor? As per below image, there are no sensor below the manifold - All sensors are located in the thermo housing (3 x sensors in total).

Will appreciate your wisdom

View attachment 3055163

this is your gauge in dash sender sensor :

Genuine NipponDenso / DENSO OEM JAPAN Gage Assy, Water Temperature Sender Sensor 2/76 - 92 FJ40 FJ55 FJ60 FJ70 BJ40 BJ41 FJ80 FJ62 Comes with OEM YAZAKI Repair Connector KIT & Special positive grip locking detent ball terminals 83420-20020 - Vint

PLUG and PLAY Repair KIT Genuine NipponDenso Japan Gage Assy, Water Temperature Sender 83420-20020 THIS IS : Gauge IN DASH SENSOR...

vintageteqparts.com

my OEM senders / OEM sending units ALSO come with repair connectors ......fyi

any photos ?

 

[nomadtribe]

this is your gauge in dash sender sensor :

Genuine NipponDenso / DENSO OEM JAPAN Gage Assy, Water Temperature Sender Sensor 2/76 - 92 FJ40 FJ55 FJ60 FJ70 BJ40 BJ41 FJ80 FJ62 Comes with OEM YAZAKI Repair Connector KIT & Special positive grip locking detent ball terminals 83420-20020 - Vint

PLUG and PLAY Repair KIT Genuine NipponDenso Japan Gage Assy, Water Temperature Sender 83420-20020 THIS IS : Gauge IN DASH SENSOR...

vintageteqparts.com

my OEM senders / OEM sending units ALSO come with repair connectors ......fyi


View attachment 3055179

any photos ?

Nice. That is the one I have replaced today.

I will take them out tomorrow in daylight. However the first and second photo is what seems to be the temp sensor. I had it out today and looks similar to the 2 x Pin connecter I bought, except that the current one is only a 1 Pin connector.

The third photo is what I believe is the thermo switch. The connector cap came off...

 

[nomadtribe]

Regarding the photos above and some further reading, it seems that the 1 Pin sensor may be the fan sensor?

 

[ToyotaMatt]

Regarding the photos above and some further reading, it seems that the 1 Pin sensor may be the fan sensor?

here is the GREY 1 PIN Coolant Sender Sensor you require :

FJ62 3FE PLUG and PLAY Repair KIT OEM Genuine NipponDensso JAPAN , Fuel Pressure Temperature Sensor , SENDER WATER TEMPERATURE Gauge Fits 87 -90 . GREY TIP 1 wire comes with the OEM Connector Plug , Seal and Extra YAZAKI OEM Terminals - VintageTEqP

NOTE: This DOES NOT Come with the Wires Attached to the connector .... Genuine NipponDenso OEM JAPAN Parts Comes with...

vintageteqparts.com

FJ62 3FE PLUG and PLAY Repair KIT OEM Genuine NipponDensso JAPAN , Fuel Pressure Temperature Sensor , SENDER WATER TEMPERATURE Gauge Fits 87 -90 . GREY TIP 1 wire comes with the OEM Connector Plug , Seal and Extra YAZAKI OEM Terminals - VintageTEqP

NOTE: This DOES NOT Come with the Wires Attached to the connector .... Genuine NipponDenso OEM JAPAN Parts Comes with...

vintageteqparts.com

 

[ToyotaMatt]

here is your 89422A in the Diagram .

OEM GENUINE NipponDenso / DENSO 3FE PLUG and PLAY Repair KIT OE Sensor, sender Water Temperature (For E.F.I.) 89422-20010 Fits 88 -92 FJ62 FJ80 USA & Canada Spec. - VintageTEqParts.com

NOTE: This DOES NOT Come with the Wires Attached to the connector .... - OEM GENUINE NipponDenso / DENSO - DOES...

vintageteqparts.com

OEM GENUINE NipponDenso / DENSO 3FE PLUG and PLAY Repair KIT OE Sensor, sender Water Temperature (For E.F.I.) 89422-20010 Fits 88 -92 FJ62 FJ80 USA & Canada Spec. - VintageTEqParts.com

NOTE: This DOES NOT Come with the Wires Attached to the connector .... - OEM GENUINE NipponDenso / DENSO - DOES...

vintageteqparts.com

 

[nomadtribe]

Thank you @ToyotaMatt

The 1 Pin sensor does seem to be a match. Do you know if this is the temp sensor linked to the ECU?

I take this one is an alternative sensor to the 1Pin connector as I do not have a sensor like this on the thermo housing OEM GENUINE NipponDenso / DENSO 3FE PLUG and PLAY Repair KIT OE Sensor, sender Water Temperature (For E.F.I.) 89422-20010 Fits 88 -92 FJ62 FJ80 USA & Canada Spec. - VintageTEqParts.com - https://vintageteqparts.com/collections/electrical/products/copy-of-oem-toyota-gage-assy-water-temperature-sender-83420-fits-88-90-fj62-usa-canada-spec

Thank you for all the feedback. Greatly appreciated!

 

[ToyotaMatt]

Thank you @ToyotaMatt

The 1 Pin sensor does seem to be a match. Do you know if this is the temp sensor linked to the ECU?

I take this one is an alternative sensor to the 1Pin connector as I do not have a sensor like this on the thermo housing OEM GENUINE NipponDenso / DENSO 3FE PLUG and PLAY Repair KIT OE Sensor, sender Water Temperature (For E.F.I.) 89422-20010 Fits 88 -92 FJ62 FJ80 USA & Canada Spec. - VintageTEqParts.com - https://vintageteqparts.com/collections/electrical/products/copy-of-oem-toyota-gage-assy-water-temperature-sender-83420-fits-88-90-fj62-usa-canada-spec

Thank you for all the feedback. Greatly appreciated!

your welcome