1994 Acura Integra GS-R, 2D CoupeFACTORY OEM SERVICE PROCEDURE

Sensor Operating Range Charts

NOTE: Unless stated otherwise in test procedure, perform all voltage tests using a Digital Volt-Ohmmeter (DVOM) with a minimum10-megohm input impedance.
COOLANT TEMPERATURE (TW) SENSOR RESISTANCE

Temperature - °F (°C) (1) Ohms
-4 (-20) 15,000-18,000
68 (20) 1000-4000
176 (80) 200-400
248 (120) 50-150
(1) Measure resistance across sensor terminals.
DISTRIBUTOR SENSOR RESISTANCE (1)

Application Ohms
CRANK Sensor 350-700
CYL Sensor 350-700
TDC Sensor 350-700
(1) See SYSTEM/COMPONENT TESTS article in the ENGINE PERFORMANCE Section to identify sensor terminals.
INTAKE AIR TEMPERATURE (IAT) SENSOR RESISTANCE (1)

Temperature - °F (°C) Ohms
-4 (-20) 15,000-18,000
68 (20) 2000-4000
176 (80) 300-400
(1) Measure resistance between sensor terminals.
MAP SENSOR VOLTAGE (1)

Vacuum Applied - In. Hg Volts
0 2.8-3.0
5 2.3-2.5
10 1.8-2.0
15 1.3-1.5
20 .8-1.0
25 .3-.5
(1) Measure voltage between ECU terminals C11 (positive) and C12 (negative).
OXYGEN SENSOR VOLTAGE (1)

Condition Volts
Lean .1
Rich .9
(1) Measure voltage between ground and O2 sensor terminal using a high-impedance DVOM.
THROTTLE POSITION SENSOR VOLTAGE (1)

Position Approximate Volts
Fully Closed 0.1-0.5
Fully Open 4.5-4.8
(1) Measure resistance between terminals C7 (positive) and C12 (negative). Voltage should increase smoothly as throttle is opened.
VEHICLE SPEED SENSOR VOLTAGE (1)

Model Approximate Volts
Integra (2)
(1) Measure voltage between terminals B10 (positive) and A26 (negative).
(2) Rotate left front wheel slowly.
Factory Service Tools

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