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B-Series/Bravo/Bounty/Drifter Bravo is the Australian vesion, Bounty the New Zealand version and Drifter the South African version.
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Old 02-07-2005, 05:05 PM   #1
89B2200
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89 B2200 temp sensor

They cost about $35.
Are they really this expensive?
This sensor goes to the bottom of the radiator with two wires.
I tested it and it is open, no resistance reading.
I heated it up with a gas lighter and no change.
What is the resistance reading at 35F, 60F and 180F? Any ideas?
Thanks for any reply.
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Old 02-09-2005, 08:29 PM   #2
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11 views and no replies. C'mon guys, somebody knows about this.

Ok, I only have the Haynes manual and it has no mention about this temp sensor.
Maybe somebody has a Factory Service Manual and can look it up for me.
Is this just a switch, temp dependent resistor, or a thermocouple?
Thanks in advanced.
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Old 02-13-2005, 03:05 AM   #3
mazdatech
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Re: 89 B2200 temp sensor

HMMMMMMM. I will take a look in alldata monday..
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Old 02-13-2005, 03:07 AM   #4
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Re: 89 B2200 temp sensor

but if i had to guess the ecu uses this sensor for emossion control where as the sesor on the thermostat is only used for the gauge onthe dash.
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Old 02-13-2005, 05:30 PM   #5
89B2200
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I found a cheaper one at Advanced. $26

I tested it with my fluke meter.

Still confused. New one has neither resitance reading nor millivolt reading.
Not even a switch contact that makes when heated.
I will install it and see what happens.
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Old 02-14-2005, 12:32 AM   #6
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Re: 89 B2200 temp sensor

Quote:
Originally Posted by 89B2200
I found a cheaper one at Advanced. $26

I tested it with my fluke meter.

Still confused. New one has neither resitance reading nor millivolt reading.
Not even a switch contact that makes when heated.
I will install it and see what happens.
hey i got like 8 mazda pickups partein out i will sell you waht vere you need email me for any parts i got every thing andi mean every lil thng i saved and for sale prices right email me at toplessmazda87@hotmail.com
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Old 02-26-2005, 12:21 PM   #7
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Finally traced the temp sensor function that is located in the bottom of radiator.

It is not a temp sensor, it is just a cold temp switch.
The switch makes around 55F and opens around 60F.
Tested the switch by dipping in iced water and the switch closed using a digital meter.

This cold temp switch activates the PTC heater in the bottom of the carb to prevent the carb from icing up during cold weather start-ups.

Just for everybody's info.
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