Oxygen Sensor

TEMPERATURE CHART

Air Flow Sensor Plate Potentiometer
Between terminals 1 and 2 > 4000 ohms
Between terminals 2 and 3 < 1000 ohms

Coolant Temperature Sensor
Between sensor terminals Refer to TEMPERATURE CHART

CIS-E Control Unit
Power supply to terminal 1 Battery Voltage

Differential Pressure Regulator
Between terminals 1 and 2 17 - 22 ohms

Oxygen Sensor
Preheat Resistor Cold (less than 68 deg. F./20 deg. C.) 3 ohms
Preheat Resistor Hot (greater than 662 deg. F./350 deg. C.) 13 ohms
Output Voltage (with CO adjustment within specs) 0.3 - 0.7 volts

Tune-up Specifications
Air/Fuel Ratio 0.7%
Air/Fuel Ratio-Limits [1] 0.3 - 1.2%
Timing 6° +/- 1° BTDC
Idle RPM [2] 900 +/- 100

[1] Check CO with the oxygen sensor connected.
[2] A/C off.