System Specifications

DISTRIBUTOR ROTOR
I.D. marking: R1
Resistance 600 - 1400 ohms

EGR FREQUENCY VALVE
Normal duty cycle at 2000 rpm 32° ± 10%
Resistance between terminals 27 - 31 ohms

EGR TEMPERATURE SENSOR
Resistance, sensor submerged in boiling water 80 - 160K ohms

ENGINE COOLANT TEMPERATURE SENSOR
Resistance @ 68°F (20°C) approx. 2.5k ohms
Resistance @ 176°F (80°C) approx. 330 ohms

ENGINE SPEED SENSOR
Resistance between terminals 1 & 2 500 - 700 ohms

EVAPORATIVE EMISSION FREQUENCY VALVE
Resistance between terminals approx. 40 - 80 ohms

FUEL INJECTORS
Resistance between terminals 14 - 21.5 ohms

FUEL PUMP
Measured with engine OFF pump RUNNING
Operating Voltage approx. 2 VDC less than Bat.
Maximum current draw 3.0 amps

HEATED OXYGEN SENSOR
Voltage output @ operating temp. 575°F (300°C)
Between terminals 3 & 4 0.1 - 1.0 VDC
Resistance, sensor heating element
Between terminals 1 & 2 approx. 2 ohms

IDLE AIR CONTROL VALVE
Resistance between terminals 7 - 10 ohms

IGNITION COIL
Coil I.D.: Green label
Primary Resistance
Between terminals 1 & 15 0.5 - 0.7 ohms
Secondary Resistance
Between terminals 4 & 15 3000 - 4000 ohms

IGNITION COIL WIRE
Resistance:
With suppressors INSTALLED 300 - 700 ohms
With suppressors REMOVED 1.5 ohms max
Suppressor, Dist. side 600 - 1400 ohms
Suppressor, Coil side 600 - 1400 ohms

INTAKE AIR TEMPERATURE SENSOR
Resistance @ 68°F (20°C) approx. 2.5k ohms
Resistance @ 105°F (40°C) approx. 1.0k ohms

SPARK PLUG WIRES
Resistance:
With suppressors INSTALLED 2300 - 3700 ohms
With suppressors REMOVED 1.5 ohms max.
Suppressor, Dist. side 600 - 1400 ohms
Suppressor, Plug side 4000 - 6000 ohms

THROTTLE POSITION SENSOR
Measured with sensor in Idle Position (closed throttle)
Resistance between terminals 1 & 2 2.5 - 4.0k ohms
Resistance between terminals 2 & 3 1.0 - 2.0k ohms
Resistance between terminals 1 & 3 1.6 - 2.4k ohms

VEHICLE SPEED SENSOR
Measured with front wheels rotating
Voltage output @ terminal 2 (varies with speed)
Fluctuating between 0 - 4 VDC