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Home >> Nissan-Datsun >> 1992 >> Sentra SE-R >> Repair and Diagnosis (Single Page) >> Engine Performance >> Sensor Range Charts >> Engine Controls - Sensor Operating Range Charts >> Sensor Range Charts
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Sensor Range Charts

Sensor operating range information can help determine if a sensor is out of calibration. An out-of-calibration sensor may not set a trouble code, but it may cause driveability problems.

NOTE: All voltage tests should be performed using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance, unless stated otherwise in test procedure. To identify ECU terminals, see appropriate wiring diagram in WIRING DIAGRAMS article.
AIR TEMPERATURE SENSOR VOLTAGE TEST (1)

Temperature °F (°C) Volts
Pickup 2.4L
68 (20) 2.4
176 (80) 0.3
Stanza
68 (20) 1.0-1.5
176 (80) 0.3
(1) With engine running, measure voltage between ground and ECU terminal No. 26.
AIRFLOW METER VOLTAGE TEST (1)

Application Terminal No. Volts
Maxima 27 1.0-2.0
NX & Sentra
1.6L 16 0.8-3.0
2.0L 16 1.3-2.1
Pathfinder, Pickup & Stanza 16 1.0-3.0
240SX 16 0.0-3.0
300ZX 27 0.8-1.6
(1) Measure voltage between ground and indicated ECU terminal. Voltage should increase with an increase in airflow (RPM). DO NOT run engine at high RPM under no load.
COOLANT TEMPERATURE SENSOR RESISTANCE TEST (1)

Temperature °F (°C) Ohms
68 (20) 2100-2900
122 (50) 680-1000
176 (80) 300-330
(1) Measure resistance across sensor terminals.
EXHAUST GAS TEMPERATURE SENSOR VOLTAGE TEST (1)

Application Terminal No. Volts With EGR Closed Volts With EGR Open
Maxima 39 1.0 Or More 0.0-1.0
NX & Sentra
1.6L 8 2.0-4.0 0.0-2.0
2.0L 8 4.5 Or Less 0.0-1.0
Pathfinder, Pickup 3.0L & Stanza 8 1.0-2.0 0.0-1.0
Pickup 2.4L 8 3.0-4.0 0.0-3.0
240SX 8 4.5 Or Less 0.0-1.0
300ZX 39 4.5 Or Less 0.0-1.0
(1) With engine running, measure voltage between ground and indicated ECU terminal.
FUEL TEMPERATURE SENSOR VOLTAGE TEST (1)

Application Terminal No. Volts
300ZX 36 0-5
(1) With engine running, measure voltage between ground and indicated ECU terminal.
DETONATION (KNOCK) SENSOR VOLTAGE TEST (1)

Application Terminal No. Volts
Maxima
VG30E 23 3.0-4.0
VE30DE 23 2.0-3.0
Pathfinder & Pickup 3.0L 27 2.0-3.0
240SX 27 2.5
300ZX 23 2.5
(1) With engine running, check voltage between ground and indicated ECU terminal.
NEUTRAL/INHIBITOR SWITCH VOLTAGE TEST (1)

Application Terminal No. Volts In Park/Neutral Volts In Other Positions
Maxima & 300ZX 44 0.0 8.0-9.0
NX & Sentra 35 0.0 Battery
Pickup 2.4L, Stanza & 240SX 35 .00 6.0-7.0
Pathfinder & Pickup 3.0L 35 2.5 Battery
(1) Turn ignition on. Check voltage between ground and indicated ECU terminal with transmission in indicated position.
OXYGEN SENSOR VOLTAGE TEST (1)

Condition Volts
Lean .1
Rich 1.0
(1) With engine running at normal operating temperature, measure voltage between oxygen sensor connector terminal and ground.
THROTTLE POSITION SENSOR VOLTAGE TEST (1)

Application Terminal No. Volts
Maxima
VE30DE 38 0.4-4.0
VG30E 38 0.5-4.2
NX, Sentra & 240SX 20 0.4-5.0
Pathfinder, Pickup 3.0L & Stanza 20 0.4-4.0
Pickup 2.4L 20 0.5-4.0
300ZX 38 0.4-4.0
(1) Turn ignition on. Measure voltage between ground and indicated ECU terminal. Observe voltage while opening and closing throttle valve.
VEHICLE SPEED SENSOR CONTINUITY TEST

Application Terminal No.
Except Maxima & 300ZX 32 (1)
Maxima & 300ZX 53 (1)
(1) Disconnect ECU connector. Check continuity between ground and indicated ECU terminal while turning drive wheels. Ohmmeter reading should fluctuate between continuity and infinity.
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