EGR Temperature Sensor
[1][2]A/C RelayResistance between terminals 1 and 2 continuity
Air Flow Meter
Output voltage between terminal B & D 2 - 4 vdc [3]
Air Fuel Mixture
CO content between 0.2 & 8.0 % [2]
Air Induction Valve Solenoid
Operating voltage 12 vdc
Resistance value 40 ohms
Air Regulator
Resistance value 70 ohms [1]
Auxiliary Air Control Valve (turbo only)
Resistance value continuity
Cylinder Head Temperature Sensor
Resistance value at specified temperature
2.1 - 2.9k ohms 20° C (68° F)
0.77 - 0.87k ohms 50° C (122° F)
0.3 - 0.33k ohms 80° C (176° F)
EGR Solenoid
Operating voltage 12 vdc
Resistance value continuity
EGR Temperature Sensor
Resistance value 85k ohms [6]
Fuel Injector
Resistance value 1.5 ohms [1]
Fuel Pump
Resistance between terminals A and C continuity
Fuel Pump Relay
Resistance between terminals 1 and 2 continuity
Fuel Temperature Sensor
Resistance value at specified temperature
2.1 - 2.9k ohms 20° C (68° F)
0.77 - 0.87k ohms 50° C (122° F)
0.3 - 0.33k ohms 80° C (176° F)
Idle Switch
Closes idle speed + 250 ± 150 rpm in neutral
Knock Sensor
Resistance value between terminal and base open (infinity)
Main (ECCS) Relay
Resistance between terminals 1 and 2 continuity
Pressure Regulator Control Solenoid
Operating voltage 12 vdc
Resistance value continuity
Safety Relay
Resistance between terminals 1 and 2 continuity
Throttle Sensor
Resistance value between terminals e & f variable [4]
Vehicle Speed Sensor
Analog Gauges
Output voltage while rotating quickly 0.5 volts A.C.
Digital Gauges
Resistance value alternates between open & closed [5]
[1] Approximately
[2] With 2.5k ohm resistor in place of cylinder head temperature sensor and O2 sensor disconnected.
[3] Varies when racing engine.
[4] Varies smoothly when moving from closed to open throttle.
[5] Two times per revolution while turning sensor.
[6] At 100° C (212° F.