How does the intake air temperature sensor function and how can it be tested and replaced on 1998 Mazda Millenia?

The intake air temperature sensor is a variable resistor which varies its resistance with changes in temperature, and assists the computer to change the air/fuel ratio and ignition timing. In order to check, apply an ohmmeter to its terminals; infinite resistance means a faulty sensor. To remove, deconnection battery cable and sensor.

Genuine 1998 Mazda Millenia Air Temperature Sensor

Ambient Air Temperature Sensor

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1998 Mazda Millenia Air Temperature Sensor Part Number: BP4W-18-845
$66.95 MSRP: $89.29
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Product Specifications
- Other Name: Sensor, Intake Air Temperature
- Replaces: KL47-18-845
- Item Weight: 0.60 Pounds
- Condition: New
- Fitment Type: Direct Replacement
- SKU: BP4W-18-845
- Warranty: This genuine part is guaranteed by Mazda's factory warranty.
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Fits the following 1998 Mazda Millenia Submodels:
- Base, L, S | 6 Cyl 2.3 L GAS, 6 Cyl 2.5 L GAS

1998 Mazda Millenia Air Temperature Sensor Parts and Q&A

Q: How does the intake air temperature sensor function and how can it be tested and replaced on 1998 Mazda Millenia?
A: The intake air temperature sensor is a variable resistor which varies its resistance with changes in temperature, and assists the computer to change the air/fuel ratio and ignition timing. In order to check, apply an ohmmeter to its terminals; infinite resistance means a faulty sensor. To remove, deconnection battery cable and sensor.