Isuzu Workshop Service and Repair Manuals

Throttle Full Close Switch: Specifications

IGNITION TIMING.............................................................................................................................................................................6° BTDC @ 900 rpm

VOLTAGE AND RESISTANCE

AIR Vacuum Switching Valve

Resistance....................................................................................................................................................................................................over 20 ohms

Canister Purge Vacuum Switching Valve

Resistance............................................................................................................................................................................................above 30-40 ohms

Coolant Temperature Sensor

15°C (59°F)...............................................................................................................................................................................4450 +293 or -336 ohms
128°C (262°F).................................................................................................................................................................................80 +4.0 or -2.3 ohms

Duty Solenoid

Resistance....................................................................................................................................................................................................over 20 ohms

EGR Temperature Sensor (Calif. only)

0°C (32°F).....................................................................................................................................................................................................27.0K ohms
20°C (68°F)...................................................................................................................................................................................................12.1K ohms
40°C (109°F)...................................................................................................................................................................................................5.9K ohms
80°C (176°F)...................................................................................................................................................................................................1.7K ohms

Fuel Cut Solenoid

Resistance....................................................................................................................................................................................................over 15 ohms

Idle Switch

Between terminals C61-1 and C61-2 (no vacuum)..................................................................................................................................................0 ohm
Between terminals C61-1 and C61-2 (4 inHg vacuum).............................................................................................................................over 100 ohms

Ignition Coil

Primary resistance......................................................................................................................................................................................1.2 - 1.4 ohms
Secondary resistance..............................................................................................................................................................................8.6 - 13.0K ohms

Manifold Absolute Pressure (MAP) Sensor: Pressure @ Voltage

2.1 psi / 15 kPa..........................................................................................................................................................................................0.122 - 0.382V
5.7 psi / 40 kPa..........................................................................................................................................................................................1.521 - 1.688V
13.4 psi / 94 kPa........................................................................................................................................................................................4.438 - 4.600V
14.6 psi / 102 kPa......................................................................................................................................................................................4.859 - 5.043V

Oxygen Sensor

Rich...................................................................................................................................................................................equal to or more than 800 mV
Lean.....................................................................................................................................................................................equal to or less than 200 mV