Air Temperature Sensor ( Ambient / Intake )

TEMPERATURE CHART - CTS

Intake Air Temperature Chart (EGR):

TEMPERATURE CHART - EGR

Air Flow Sensor Plate Potentiometer
Between terminals 1 and 2 > 4000 ohms
Between terminals 2 and 3 < 1000 ohms
Between terminals 2 and 3 (raise sensor plate) > 4000 ohms uniformly

Coolant Temperature Sensor
Between sensor terminals Refer to TEMPERATURE CHART - CTS

CIS-E Control Unit
Power supply to terminal 19 Battery Voltage
Power supply to terminal 14 Battery Voltage
Engine speed limit approx. 6800 RPM

Cold Start Valve
Between valve terminals approx. 10 ohms

Differential Pressure Regulator
Between terminals 1 and 2 15 - 25 ohms

Idle Stabilizer Valve
Between terminals on valve 4 - 12 ohms

Intake Air Temperature Sensor (EGR)
Between sensor terminals Refer to TEMPERATURE CHART - EGR

Knock Sensors
Between terminals 1 and 2 infinite 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] 800 - 1000

[1] Check CO with the oxygen sensor connected.
[2] Not adjustable, with A/C off.