Computers and Control Systems: Specifications

COMPONENT RESISTANCE RANGES


Canister Purge Solenoid Resistance 36 - 44 ohms

Coolant Temperature Sensor Resistance

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


Charge Temperature Sensor Resistance

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

SENSOR OUTPUT VOLTAGE RANGES

Camshaft Reference Sensor Output Voltage

Slot Sensed approximately 5.0 Volts
No Slot Sensed approximately 0.3 Volts [1]

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

Manifold Absolute Pressure (MAP) Sensor Output Voltage

Sensor output voltage range is 0.5 to 4.5 volts.

Output voltages between 0.5 and 1.5 volts indicate a high vacuum situation, such as idle or deceleration.

Output voltages between 1.5 and 3.0 volts indicate a medium level of vacuum such as a cruise or slight acceleration condition.

Output voltages between 3.0 and 4.5 volts indicate a low vacuum situation such as hard acceleration or a mechanical failure.

Any reading of 0 volts or over 5 volts indicates a problem.

Oxygen Sensor Output Voltage

Sensor Range is 0 to 1.0 volts.

Output voltages below 0.5 volts indicate a lean condition.

Output voltages over 0.5 volts indicate a rich condition.

Any reading of less than 0 volts or over 1.0 volts indicates a defective sensor.


Throttle Position Sensor Output Voltage

@ 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


REGULATED REFERENCE VOLTAGES

Camshaft Reference Sensor 9.0 Volts
Crankshaft Reference Sensor 9.0 Volts
Coolant Temperature Sensor 5.0 Volts
Manifold Absolute Pressure (MAP) Sensor 5.0 Volts
Throttle Position Sensor (TPS) 5.0 Volts
Vehicle Speed Sensor (VSS) 9.0 Volts





REGULATED REFERENCE VOLTAGES

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