arnis
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Re: Who made this AC pressure sensor? What is the part number?

Tue Feb 11, 2020 4:56 pm

Just a wild guess.

Looking at Denso designs, their AC sensors have totally different plug design.
Why should they design a new plug for Leaf.
And new Logo.
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LeftieBiker
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Re: Who made this AC pressure sensor? What is the part number?

Tue Feb 11, 2020 5:03 pm

arnis wrote:
Tue Feb 11, 2020 4:56 pm
Just a wild guess.

Looking at Denso designs, their AC sensors have totally different plug design.
Why should they design a new plug for Leaf.
And new Logo.
Designs do tend to change over 5+ years.
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skorik
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Re: Who made this AC pressure sensor? What is the part number?

Fri Feb 14, 2020 1:32 am

arnis wrote:
Sun Feb 09, 2020 4:58 am
There is a AC pressure sensor on gen1 Leafs that have heat pump.
This sensor has a different plug compared to those that don't have heat pump capability.
This sensor is sold as a assembly with AC-pipe. No Nissan part number.
All numbers are metric. Thread is also metric (M10x1 AFAIK).

I believe the "D" is the manufacturer's logo and 8610 could be manufacturer's internal part number,
or just detail nr (similar to 12P01).
Other side has plastic formula PPS-GF30. Nothing else has been observed, even with microscope.
Who is manufacturer and on what other vehicles/devices is that sensor used?
This is extremely important for me as the sensor failed :lol:
3-pin, ground-signal-5V. Signal got stuck at 4,9V no matter the pressure. Weight: 23.8grams

Image
Image
92136-1FA0A i install it? but wire solder at other... pin at a sensor 92136-1FA0A at center!and not install

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Nubo
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Re: Who made this AC pressure sensor? What is the part number?

Fri Feb 14, 2020 3:23 pm

Pressure vs. voltage

Image

Image


Image
I noticed you're still working with polymers.

arnis
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Re: Who made this AC pressure sensor? What is the part number?

Sat Feb 15, 2020 3:44 pm

Graphs look similar. Slight difference doesn't actually matter for HVAC work.
But I wasn't able to get the plug from stealership.
Bot sensors appear to have same pinout. 0V signal and 5V.
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arnis
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Re: Who made this AC pressure sensor? What is the part number?

Tue Mar 31, 2020 2:05 am

Found used part from scrapped vehicle. My problem is solved but as of right now no new sensors are for sale anywhere.
Manufacturer is still unknown.

As a precaution I sealed the edge between plastic and round metal part with silicone. Maybe electronics got damp through that.
I have no other ideas how sensor failed.

Maybe I will cut old sensor in half later on.

Let this topic be a guide with bad ending.
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nlspace
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Re: Who made this AC pressure sensor? What is the part number?

Tue Mar 31, 2020 2:56 am

Don't cut thru it at first. Use a lathe, or a hack saw, to cut all around the "crimp"--the rounded section where the metal was rolled over. Then the entire guts can be pulled out intact. Inspect and photo, then slice and dice.

i searched quite a bit looking for the part and for the logo with no luck, really strange that nothing could be found. i doubt there are any clues inside but maybe you can check to see.

arnis
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Re: Who made this AC pressure sensor? What is the part number?

Fri Apr 03, 2020 5:04 am

Should I first immerse it in some liquid (with some color agent?) for a day? Then wash it with water. And then cut open?

Or I should expect some liquid damage anyway.
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nlspace
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Re: Who made this AC pressure sensor? What is the part number?

Fri Apr 03, 2020 6:06 am

It depends whether you think it was leaking past the diaphragm, or that it just had an electrical failure of the sensor?

My guess is electrical failure of the Wheatstone bridge strain gage used as the pressure sensor.

If something was cracked such that it was leaking, then i believe you will see it when you slide it open. It can't hurt to inject some colored liquid into the pressure chamber; it would probably need to be pressurized somehow to force the crack to leak.

arnis
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Re: Who made this AC pressure sensor? What is the part number?

Sat Apr 04, 2020 5:28 am

Ok, will not then.
As of right now I can say that when it was on the vehicle and in my hands, both ways it gave a signal of 4.8V out of 5V (input).
That is above maximum pressure it can measure and out of range for control unit. I added a resistor between signal and ground
to to drop it down into range so I could temporarily test vehicle circuit rather than suppose it is 100% sensor. And voltage did drop
and system did work - therefore I concluded it is the sensor.
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