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Intake Air Temperature Sensor

INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE (EXCEPT B2300, B3000, B4000 & TRIBUTE)

Temperature - °F (°C) (1) Ohms
Miata
68 (20) 2210-2690
176 (80) 290-354
Millenia 2.3L (2)
Air Cleaner Housing
68 (20) 2100-2800
176 (80) 280-370
Dynamic Chamber
77 (25) 29,700-36,000
185 (85) 3330-3670
Lysolm Compressor
212 (100) 5600-6900
Millenia 2.5L
68 (20) 2100-2800
176 (80) 280-370
MPV
50 (10) 3300-4100
68 (20) 2200-2700
86 (30) 1400-1900
Protege & Protege5
68 (20) 2000-2900
176 (80) 270-370
626 2.0L & 2.5L
68 (20) 35,500-39,200
140 (60) 7180-7920
(1) Measure resistance between IAT sensor terminals.
(2) Millenia 2.3L uses 3 different IAT sensors. Listed by location.
INTAKE AIR TEMPERATURE (IAT) SENSOR SPECIFICATIONS (B2300, B3000, B4000 & TRIBUTE)

Temperature - °F (°C) (1) PID Volts (2) Ohms
50 (10) 3.52 58,750
68 (20) 3.06 37,300
86 (30) 2.62 24,270
104 (40) 2.16 16,150
122 (50) 1.70 10,970
140 (60) 1.35 7700
158 (70) 1.04 5370
176 (80) 0.78 3840
194 (90 0.60 2800
212 (100 0.46 2070
230 (110 0.35 1550
248 (120) 0.27 1180
(1) Check sensor voltage using New Generation Star (49 T088 0A0) scan tool connected to Data Link Connector (DLC) 2. DLC is located under left side of instrument panel, right of steering column.
(2) Measure resistance between IAT sensor terminals.