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Sensor Operating Range Charts

CAMSHAFT POSITION (CMP) SENSOR VOLTAGE (1)

Application PCM Connector/Terminal No. Volts
3-Speed A/T Or M/T B/3 & Ground (2) 0-5.25
4-Speed A/T D/3 & Ground (2) 0-5.25
(1) Measured at PCM with ignition on.
(2) Voltage toggles from 0-1 volt to 3-5.25 volts as distributor rotor is turned slowly.
CRANKSHAFT POSITION (CKP) SENSOR RESISTANCE

Application Ohms @ 68°F (20°C)
1.6L 360-460
ENGINE COOLANT TEMPERATURE (ECT) SENSOR RESISTANCE

Temperature °F (°C) Ohms
32 (0) 5210-6370
68 (20) 2210-2690
104 (40) 1140
140 (60) 580
176 (80) 290-350
INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE

Temperature °F (°C) Ohms
32 (0) 5400-6600
68 (20) 2280-2870
104 (40) 1060-1360
140 (60) 530-700
176 (80) 290-390
212 (100) 160-230
CAUTION: Damage to MAP sensor will occur if connections are made incorrectly.
MAP SENSOR OUTPUT VOLTAGE (OFF-VEHICLE)

Vacuum (In. Hg) (1)(2) Volts
8 2.4-4.4
10 2.1-4.1
12 1.9-3.9
14 1.6-3.6
16 1.3-3.3
(1) MAP sensor output voltage is tested with three 1.5-volt batteries connected in series (output 4.5-5.0 volts). Positive lead of batteries is connected to "Vin" terminal. Negative lead of batteries is connected to "Ground" terminal. Check output voltage between "Vout" and "Ground" terminals.
(2) Voltage should reduce when up to 15 in. Hg of vacuum is applied to MAP sensor.
CAUTION: Blowing compressed air through mass airflow sensor will damage it.
MASS AIRFLOW (MAF) SENSOR VOLTAGE TEST (1)

Application PCM Connector/Terminal No. Volts
3-Speed A/T Or M/T
Ign. On; Eng. Off A/9 & Ground 1.0-1.6
Engine At Idle A/9 & Ground 1.7-2.0
4-Speed A/T
Ign. On; Eng. Off D/9 & Ground 1.0-1.6
Engine At Idle D/9 & Ground 1.7-2.0
(1) Voltage should increase as engine speed increases.
THROTTLE POSITION (TP) SENSOR RESISTANCE

Application Ohms
Between Terminals "A" & "B"
With .020" (.50 mm) Clearance At Stop Screw 0-500
With .031" (.80 mm) Clearance At Stop Screw Infinity
Between Terminals "A" & "D" 3500-6500
Between Terminals "A" & "C"
At Idle 300-2000
At Wide Open Throttle (1) 2000-6500
(1) There should be more than 2000 ohms difference between idle and wide open throttle resistance.
VEHICLE SPEED SENSOR (VSS) RESISTANCE

Application Ohms
1.6L (1) *
(1) With ohmmeter connected to vehicle speed sensor terminals, ohmmeter should alternate between zero and infinity 4 times per sensor shaft revolution.
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