LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Isuzu >> 2000 >> Trooper LS, RWD >> Repair and Diagnosis >> Engine Performance >> Sensor Range Charts >> Engine Controls - Sensor Operating Range Charts >> Introduction
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Engine Controls - Sensor Operating Range Charts: Introduction

NOTE: This article also applies to Honda Passport. For Passport coverage, refer to Rodeo, unless otherwise indicated.

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: See appropriate SELF-DIAGNOSTICS article or SYSTEM & COMPONENT TESTING article for additional sensor testing procedures.
NOTE: Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum 10-megohm input impedance.
ENGINE COOLANT TEMPERATURE (ECT) & INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE (HOMBRE)

Temperature °F (°C) Ohms
212 (100) 177
194 (90) 241
158 (70) 467
122 (50) 973
104 (40) 1459
86 (30) 2238
68 (20) 3520
50 (10) 5670
ENGINE COOLANT TEMPERATURE (ECT) & INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE (EXCEPT HOMBRE)

Temperature °F (°C) Ohms
212 (100) 177
176 (80) 332
140 (60) 667
113 (45) 1188
95 (35) 1802
77 (25) 2796
59 (15) 4450
41 (5) 7280
23 (-5) 12300
5 (-15) 21450
-22 (-30) 52700
-40 (-40) 100700
FUEL LEVEL SENSOR SPECIFICATIONS (3.2L)

Position Ohms
E 102.5-120.5
1/6 73
1/3 56
1/2 45
2/3 36.75
5/6 30
F 17-23.5
OXYGEN SENSOR VOLTAGE

Condition (1) Volts
Lean 0.1
Rich 1.0
(1) Test at normal operating temperature.