HELP with sensor and wire PLEASE. . SOLVED (1 Viewer)

[White Sheep]

Felt the engine doing a little stumble more noticeable than normal and kind of rough sounding. Went looking around with a flash light and noticed this wire pulled out of the sensor .

Which sensor is this?

Can I replace the wire without getting a whole wiring kit?

Whats the part number?

Is it ok for normal driving until fixed?

Thanks in advance

 

[enox]

 

[enox]

Coolant temp sensor location for ECM not Gauge

I purchased a coolant temp sensor for my '94 due to a stumble the truck has while warming up. I didn't realize there were two, a one wire sender for the gauge, and a two-wire one that talks to the ECM. I have the two-wire sensor for the ECM, but don't know where that sensor is located. FSM...

forum.ih8mud.com

 

[Shipwreck]

ECT
Engine coolant temperature sensor
83420-16040
Connector is available too.

 

[White Sheep]

View attachment 2466831

So mine is the ECT Sender Gauge? What about the wire that's now disconnected?

 

[White Sheep]

ECT
Engine coolant temperature sensor
83420-16040
Connector is available too.

Ah, thanks. . I just asked the question lol

 

[White Sheep]

ECT
Engine coolant temperature sensor
83420-16040
Connector is available too.

Do you know where I can purchase the connector?

 

[jonheld]

Do you know where I can purchase the connector?

Toyota.

FAQ - 1995-1997 1FZ-FE FZJ80 OBD2 Main Engine Wiring Harness Connector Information

The following posts are to document the 1FZ-FE US market 80 series 1995-1997 OBD2 main engine wiring harness connectors. While this is not exhaustive in the sense that it covers every single connector, it does cover about 95% of them. The remaining 5% or so are not sourceable outside of the...

forum.ih8mud.com

 

[thatcabledude]

To answer your question.. it's fine to drive the truck. You should notice your water temp gauge in the cluster isn't working.

 

[White Sheep]

To answer your question.. it's fine to drive the truck. You should notice your water temp gauge in the cluster isn't working.

Yeah thats what I noticed last night. Im currently doing my breaks and it looks like the PHH started to leak, coolant somewhere near the front. DO you think this has added pressure to other areas?

 

[thatcabledude]

Yeah thats what I noticed last night. Im currently doing my breaks and it looks like the PHH started to leak, coolant somewhere near the front. DO you think this has added pressure to other areas?

No, other than that gauge it affects nothing.

 

[LandLocked93]

Do you know where I can purchase the connector?

And FWIW, also know that the sensor, its corresponding connector, and the pin that goes into the connector are all separate parts. The sensor and the connector do not look like they go together, so be sure to test fit them at the dealer counter. It took 30 minutes for the parts guy at my dealer to let me handle the parts and connect them together before either of us believed we actually had the right parts in front of us.

 

[White Sheep]

And FWIW, also know that the sensor, its corresponding connector, and the pin that goes into the connector are all separate parts. The sensor and the connector do not look like they go together, so be sure to test fit them at the dealer counter. It took 30 minutes for the parts guy at my dealer to let me handle the parts and connect them together before either of us believed we actually had the right parts in front of us.

Ok thanks. After I finish with the brakes, ill start draining the coolant and take the plug out

 

[TomH]

No, other than that gauge it affects nothing.

Are you sure this doesn't feedback to the ECU? When mine went out the temp on my ultragauge was all over the place and the truck ran like crap. I assumed low temperature readings were causing the computer to adjust accordingly which caused problems with an engine that was at operating temp.

 

[Kernal]

When you do work on the PHH be careful of the #2 knock sensor, the plastic gets very fragile and the slightest bump will snap it's male connector off. Some people remove that knock sensor before working in that area. And while you're in there take a look at the coolant bypass hose (runs up to the TB) located a few inches in front of the PHH, that often needs replacing also.

 

[LandLocked93]

Are you sure this doesn't feedback to the ECU? When mine went out the temp on my ultragauge was all over the place and the truck ran like crap. I assumed low temperature readings were causing the computer to adjust accordingly which caused problems with an engine that was at operating temp.

Unsure if relevant in this case, but not on OBD1 trucks.

 

[thatcabledude]

Are you sure this doesn't feedback to the ECU? When mine went out the temp on my ultragauge was all over the place and the truck ran like crap. I assumed low temperature readings were causing the computer to adjust accordingly which caused problems with an engine that was at operating temp.

ECU has it’s own seperate sensor.

 

[White Sheep]

Are you sure this doesn't feedback to the ECU? When mine went out the temp on my ultragauge was all over the place and the truck ran like crap. I assumed low temperature readings were causing the computer to adjust accordingly which caused problems with an engine that was at operating temp.

When I drove last night my scangauge II was reading in the 180-190. So I'm not sure

 

[White Sheep]

When you do work on the PHH be careful of the #2 knock sensor, the plastic gets very fragile and the slightest bump will snap it's male connector off. Some people remove that knock sensor before working in that area. And while you're in there take a look at the coolant bypass hose (runs up to the TB) located a few inches in front of the PHH, that often needs replacing also.

Thanks I'll keep an eye on that. I might just do the PHH bypass as well

 

[White Sheep]

Toyota.

FAQ - 1995-1997 1FZ-FE FZJ80 OBD2 Main Engine Wiring Harness Connector Information

The following posts are to document the 1FZ-FE US market 80 series 1995-1997 OBD2 main engine wiring harness connectors. While this is not exhaustive in the sense that it covers every single connector, it does cover about 95% of them. The remaining 5% or so are not sourceable outside of the...

forum.ih8mud.com

After removing the sensor, im just missing the plug.

So, looking at the diagrams from the forum you sent me, I believe its this connector:

1 way coolant/ knock sensor connector plug (Toyota 90980-11428)

Am I correct?