Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSACURA1989INTEGRA L4-1590CC 1.6L DOHC FIREPAIR AND DIAGNOSISSPECIFICATIONSELECTRICAL SPECIFICATIONSPOWERTRAIN MANAGEMENTSYSTEM SPECIFICATIONS
1989 Acura Integra L4-1590cc 1.6L DOHC FI
System Specifications
1989 Acura Integra L4-1590cc 1.6L DOHC FISECTION System Specifications
ATMOSPHERIC PRESSURE (PA) SENSOR
Atmospheric Pressure/Output voltage
125 mm Hg (5 in. Hg) 2.5 Volts
250 mm Hg (10 in. Hg) 2.0 Volts
375 mm Hg (15 in. Hg) 1.5 Volts
500 mm Hg (20 in. Hg) 1.0 Volts
625 mm Hg (25 in. Hg) 0.5 Volts
ELECTRONIC AIR CONTROL VALVE (EACV)
Resistance 8 - 15 Ohms
FUEL INJECTOR
Resistance 1.5 - 2.5 Ohms
FUEL INJECTOR RESISTOR
Terminals B, C, D, E to A
Resistance 5 - 7 Ohms
INTAKE AIR TEMPERATURE (TA) SENSOR
Intake Air temperature/resistance
-20°C ( -4°F) 20 K Ohms
0°C ( 32°F) 5 K Ohms
40°C (104°F) 1 K Ohms
80°C (176°F) 350 Ohms
120°C (248°F) 100 Ohms
MANIFOLD ABSOLUTE PRESSURE SENSOR (MAP)
Manifold Absolute Pressure/Output voltage
125 mm Hg (5 in. Hg) 2.5 Volts
250 mm Hg (10 in. Hg) 2.0 Volts
375 mm Hg (15 in. Hg) 1.5 Volts
500 mm Hg (20 in. Hg) 1.0 Volts
625 mm Hg (25 in. Hg) 0.5 Volts
OXYGEN SENSOR
Mixture/Output Voltage
Lean Less Than 0.4 Volts
14.7/1 Stoichiometric 0.4 - 0.6 Volts
Rich More Than 0.6 Volts
THROTTLE ANGLE SENSOR
Throttle Closed (Idle) 0.2 Volts
1/4 Throttle 0.5 Volts
1/2 Throttle 1.75 Volts
3/4 Throttle 3.0 Volts
Full Throttle 4.0 Volts
WATER TEMPERATURE (TW) SENSOR
Coolant temperature/resistance
-20°C ( -4°F) 20 K Ohms
0°C ( 32°F) 5 K Ohms
40°C (104°F) 1 K Ohms
80°C (176°F) 350 Ohms
120°C (248°F) 100 Ohms
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.