Computers and Control Systems

COMPONENT RESISTANCE RANGES


Canister Purge Solenoid 36 - 44 ohms

Coolant Temperature Sensor

@ 70°F (21°C) 7,000-13,000 ohms
@ 200°F (93°C) 700-1,000 ohms

SENSOR OUTPUT VOLTAGE RANGES

Throttle Position Sensor

@ Minimum Throttle Opening (Idle) approximately 0.5 Volts
@ Wide Open Throttle (WOT) approximately 3.5 Volts [1]

[1] Wide Open Throttle (WOT) output voltage should be about 3 volts higher than idle output voltage.

Oxygen Sensor 0.0 to 1.0 Volts

Methanol Concentration Sensor 0.5 Volts (pure gas) to 4.5 Volts (85% methanol)

REGULATED REFERENCE VOLTAGES

Methanol Concentration Sensor 8.0 Volts
Vehicle Speed Sensor (VSS) 9.0 Volts
Distributor Pick-up 9.0 Volts
Coolant Temperature Sensor 5.0 Volts
Manifold Absolute Pressure (MAP) Sensor 5.0 Volts
Throttle Position Sensor (TPS) 5.0 Volts