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Mazda gurus - what are these sensors? (pics attached)

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Old 08-03-11, 10:13 PM
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Mazda gurus - what are these sensors? (pics attached)

What are these 3 sensors? Thanks in advance
Attached Thumbnails Mazda gurus - what are these sensors? (pics attached)-sensors.jpg   Mazda gurus - what are these sensors? (pics attached)-sensor2.jpg  
Old 08-03-11, 10:14 PM
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pic 1 is the coolant and oil pressure sensor.
Old 08-03-11, 10:19 PM
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Thanks!

I wonder what that 3rd sensor is.
Old 08-03-11, 10:20 PM
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3rd looks like the air temp sensor, screws into the UIM on the bottom center of it.
Old 08-03-11, 10:23 PM
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yea, just walked outside, blue plug looks like the AIT
Old 08-03-11, 10:29 PM
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In picture one, that is not an FD oil pressure sending unit. Both screw into the driver's side of the rear engine iron.

The blue AIT sensor seals with a copper crush washer.
Old 08-04-11, 08:33 PM
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Blue sensor is not an FD air intake sensor but may be a water thermo sensor from another make or model that will work at different temp. Sensor on the air intake is narrow and the stick is a non metal black material.

Goodfella is right that's not a stock oil pressure sensor but it may work.
Old 08-04-11, 08:39 PM
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The oil pressure sensor is from an FC, the water temp sensor with it is very likely an '89-91 FC part.

Hard to say on that air intake temp sensor, that's a weird angle the pic is at.

Dale
Old 08-04-11, 08:48 PM
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Originally Posted by Fritz Flynn
Blue sensor is not an FD air intake sensor but may be a water thermo sensor from another make or model that will work at different temp. Sensor on the air intake is narrow and the stick is a non metal black material.

Goodfella is right that's not a stock oil pressure sensor but it may work.
I just replaced my air intake sensor, it looked exactly like that and I got it from Ray. Here is my old one, the plug is exactly the same except green, the new one was blue.



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Old 08-04-11, 10:37 PM
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the big one is oil press sending unit, the small one is the the water temp for your gauge inside and the blue one should be the air intake because i have bunch of blue ones on all my uim. the green are either for your water temp sensor and fuel temp sensor.
Old 08-05-11, 09:54 AM
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Originally Posted by DaleClark
The oil pressure sensor is from an FC, the water temp sensor with it is very likely an '89-91 FC part.

Hard to say on that air intake temp sensor, that's a weird angle the pic is at.

Dale
I removed both oil pressure and water temp sensors from my FD. I guess the PO put in FC parts. As far as the air intake temp sensor, that's actually a brand new part from Autozone. I asked for a "coolant temp sensor" and that's what they gave me. It looked a little odd to me that's why I posted. I just returned it yesterday.

Thanks everyone for their help figuring out my mystery. The PO simply just swapped the first 2 sensors with FC parts.
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