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 MANUALSMITSUBISHI1991PRECIS L4-1468CC 1.5L SOHCREPAIR AND DIAGNOSISSPECIFICATIONSELECTRICAL SPECIFICATIONSTHROTTLE POSITION SENSOR
1991 Mitsubishi Precis L4-1468cc 1.5L SOHC
Throttle Position Sensor
1991 Mitsubishi Precis L4-1468cc 1.5L SOHCSECTION Throttle Position Sensor
Air Flow Sensor
Output voltage (v) At Engine speed (rpm)
2.7-3.2v 700 rpm (Idle)
2.7-3.2v 3,000 rpm
Barometric Pressure Sensor
Ambient pressure (ignition on, engine off) Approx. 4.00v
Vacuum 16 in.Hg Approx. 1.84v
Vacuum 24 in.Hg Approx. 0.79v
Engine Coolant Temperature Sensor
Sensor Resistance At Water Temperature
5.9k ohm 32~F
2.5k ohm 68~F
1.1k ohm 104~F
0.3k ohm 176~F
Crank Angle Sensor
Terminal 2 Output (Powered, Cranking Engine) 0.2-1.2v (needle fluctuates)
EGR Control Solenoid Valve
Resistance @ 68°F 38-44 ohm
EGR Temperature Sensor
Sensor Resistance At Water Temperature
60-83k ohm 122~F
11-14k ohm 212~F
Ignition Timing
Base timing (at curb idle) 5~±2~BTDC
Idle timing 10~BTDC
Injectors
Resistance @ 68°F 13-16 ohm
Air Temperature Sensor (Intake)
Sensor Resistance At Ambient Temperature
6.0k ohm 32°F
2.7k ohm 68°F
0.4k ohm 176°F
ISC Motor Coil
Resistance @ 68°F 5-36 ohm
Motor Position Sensor
Terminal 4 Output (Powered Cranking Engine) 1.8-2.5v
Resistance
ISC Motor Unpowered 4-7k ohm
ISC Motor Powered Approx. 0.5k ohm increasing to 4-6k ohm
Purge Control Solenoid Valve
Resistance @ 68°F 38-44 ohm
TDC Sensor (#1 cyl)
Terminal 3 Output (Powered, Cranking Engine) 1.8-2.5v
Throttle Position Sensor
TPS Output @ curb idle 0.48-0.52v
Resistance Approx 0.5k ohm smoothly increasing to 3.5K-6.5k ohm
Output voltage (v) At Engine speed (rpm)
2.7-3.2v 700 rpm (Idle)
2.7-3.2v 3,000 rpm
Barometric Pressure Sensor
Ambient pressure (ignition on, engine off) Approx. 4.00v
Vacuum 16 in.Hg Approx. 1.84v
Vacuum 24 in.Hg Approx. 0.79v
Engine Coolant Temperature Sensor
Sensor Resistance At Water Temperature
5.9k ohm 32~F
2.5k ohm 68~F
1.1k ohm 104~F
0.3k ohm 176~F
Crank Angle Sensor
Terminal 2 Output (Powered, Cranking Engine) 0.2-1.2v (needle fluctuates)
EGR Control Solenoid Valve
Resistance @ 68°F 38-44 ohm
EGR Temperature Sensor
Sensor Resistance At Water Temperature
60-83k ohm 122~F
11-14k ohm 212~F
Ignition Timing
Base timing (at curb idle) 5~±2~BTDC
Idle timing 10~BTDC
Injectors
Resistance @ 68°F 13-16 ohm
Air Temperature Sensor (Intake)
Sensor Resistance At Ambient Temperature
6.0k ohm 32°F
2.7k ohm 68°F
0.4k ohm 176°F
ISC Motor Coil
Resistance @ 68°F 5-36 ohm
Motor Position Sensor
Terminal 4 Output (Powered Cranking Engine) 1.8-2.5v
Resistance
ISC Motor Unpowered 4-7k ohm
ISC Motor Powered Approx. 0.5k ohm increasing to 4-6k ohm
Purge Control Solenoid Valve
Resistance @ 68°F 38-44 ohm
TDC Sensor (#1 cyl)
Terminal 3 Output (Powered, Cranking Engine) 1.8-2.5v
Throttle Position Sensor
TPS Output @ curb idle 0.48-0.52v
Resistance Approx 0.5k ohm smoothly increasing to 3.5K-6.5k ohm
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.