Operation CHARM: Car repair manuals for everyone.

Electrical Specifications

ENGINE COOLANT TEMPERATURE (ECT) SENSOR


212°F or (100°C) 177 Ohms

158°F or (70°C) 467 Ohms

100°F or (38°C) 1800 Ohms

68°F or (20°C) 3520 Ohms

40°F or (4°C) 7500 Ohms

20°F or (-7°C) 13,500 Ohms

0°F or (-18°C) 25,000 Ohms

-40°F or (-40°C) 100,700 Ohms




IDLE AIR CONTROL (IAC) VALVE


Terminals "A" to "B" 40 to 80 Ohms

Terminals "C" to "D" 40 to 80 Ohms

Terminals "B" to "C" Infinite Ohms

Terminals "A" to "D" Infinite Ohms



MANIFOLD ABSOLUTE PRESSURE (MAP) SENSOR


1,000 to 2,000 Feet 3.6 to 5.2 Volts

2,000 to 3,000 Feet 3.5 to 5.1 Volts

3,000 to 4,000 Feet 3.3 to 5.0 Volts

4,000 to 5,000 Feet 3.2 to 4.8 Volts

5,000 to 6,000 Feet 3.0 to 4.6 Volts

6,000 to 7,000 Feet 2.9 to 4.5 Volts

7,000 to 8,000 Feet 2.8 to 4.3 Volts

8,000 to 9,000 Feet 2.6 to 4.2 Volts

9,000 to 10,000 Feet 2.5 to 4.0 Volts



OXYGEN (O2S) SENSOR

Closed Loop 100 mV (.1 volt) to .999 mV (1.0 volt)



THROTTLE POSITION SENSOR

Idle (normal) .45 to .95 volts.
(maximum) 1.25 volts.
Wide Open Throttle 4.0 to 4.5 volts.

The Throttle position Sensor is not adjustable on this engine but should read below 1.25 volts at closed throttle and about 4.5 volts at wide open throttle.