Trooper II L4-2559cc 2.6L SOHC (4ZE1) (1989)
Oxygen Sensor: Specifications
IGNITION TIMING...........................................................................................................................................................................12° BTDC @ 900 rpm
VOLTAGE AND RESISTANCE
Air Flow Sensor
Between red power source terminal (32) and ground...................................................................................................................................10 - 14 ohms
Air Regulator
Resistance.....................................................................................................................................................................................................45 - 50 ohms
AIR Vacuum Switching Valve
Resistance............................................................................................................................................................................................................36 ohms
Canister Purge Vacuum Switching Valve
Resistance...............................................................................................................................................................................................approx. 35 ohms
Coolant Temperature Sensor
-10°C (14°F)................................................................................................................................................................................................7 - 12K ohms
10°C (50°F)...................................................................................................................................................................................................3 - 5K ohms
20°C (68°F)...................................................................................................................................................................................................2 - 3K ohms
50°C (122°F)..............................................................................................................................................................................................0.7 - 1K ohms
80°C (176°F)...........................................................................................................................................................................................0.2 - 0.4K ohms
Dropping Resistor
Between center terminal and any other terminal...............................................................................................................................................5 - 7 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
100°C (212°F).................................................................................................................................................................................................1.0K ohms
Fuel Injectors
Resistance.........................................................................................................................................................................................................2 - 3 ohms
Fuel Pump Relay
Resistance............................................................................................................................................................................................................80 ohms
Ignition Coil
Primary resistance..................................................................................................................................................................................0.81 - 0.99 ohms
Secondary resistance..............................................................................................................................................................................7.5 - 11.3K ohms
Oxygen Sensor
Voltage range...................................................................................................................................................................................approx. 0.30 - 0.80V
Pressure Regulator Vacuum Switching Valve
Resistance............................................................................................................................................................................................................36 ohms
Starter Relay
Resistance............................................................................................................................................................................................................80 ohms
Throttle Position Sensor (Auto. trans. only)
Between terminals 30 and 38............................................................................................................................................................................12K ohms
Vehicle Speed Sensor
Signal to ECM..............................................................................................................................................................................4 pulses per revolution