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 MANUALSHYUNDAI1991SONATA V6-3.0LREPAIR AND DIAGNOSISSPECIFICATIONSELECTRICAL SPECIFICATIONSCRANKSHAFT POSITION SENSOR
1991 Hyundai Sonata V6-3.0L
Crankshaft Position Sensor
1991 Hyundai Sonata V6-3.0LSECTION Crankshaft Position Sensor
Air Flow Sensor
Output voltage (v) At Engine speed (rpm)
2.7-3.2v 700 rpm
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
5.9 Kohm 32~F
2.5 Kohm 68~F
1.1 Kohm 104~F
0.3 Kohm 176~F
Crank Angle Sensor
Terminal 1 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
60-83 Kohm 122~F
11-14 Kohm 212~F
Ignition Timing
Base timing (at curb idle) 5~±2~BTDC
Idle timing 15~BTDC
Injectors
Resistance @ 68°F 13-16 ohm
Air Temperature Sensor (Intake)
Sensor Resistance At Ambient Temperature
5.4 - 6.6 Kohm 32°F
2.33 - 2.97 Kohm 68°F
0.31 - 0.43 Kohm 176°F
ISC Motor Coil (Stepper Motor)
Resistance @ 68°F 28-33 ohm
Purge Control Solenoid Valve
Resistance @ 68°F 38-44 ohm
Throttle Position Sensor
TPS Output @ curb idle 0.48-0.52v
Resistance Approx 0.5 Kohm smoothly increasing to 3.5-6.5 Kohm
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.