Operation CHARM: Car repair manuals for everyone.

System Specifications

SENSOR SPECIFICATIONS:

ATMOSPHERIC PRESSURE (PA) SENSOR
Atmospheric Pressure Output voltage
125 mm Hg (5 in. Hg) 2.5 Volts
250 mm Hg (10 in. Hg) 2.0 Volts
375 mm Hg (15 in. Hg) 1.5 Volts
500 mm Hg (20 in. Hg) 1.0 Volts
625 mm Hg (25 in. Hg) 0.5 Volts

COOLANT TEMPERATURE (TW) SENSOR
Coolant temperature Resistance
-20°C ( -4°F) 20 K Ohms
0°C ( 32°F) 5 K Ohms
40°C (104°F) 1 K Ohms
80°C (176°F) 350 Ohms
120°C (248°F) 100 Ohms

INTAKE AIR TEMPERATURE (TA) SENSOR
Intake Air temperature Resistance
-20°C ( -4°F) 20 K Ohms
0°C ( 32°F) 5 K Ohms
40°C (104°F) 1 K Ohms
80°C (176°F) 350 Ohms
120°C (248°F) 100 Ohms

MANIFOLD ABSOLUTE PRESSURE SENSOR (MAP)
Manifold Absolute Pressure Output Voltage
125 mm Hg (5 in. Hg) 2.5 Volts
250 mm Hg (10 in. Hg) 2.0 Volts
375 mm Hg (15 in. Hg) 1.5 Volts
500 mm Hg (20 in. Hg) 1.0 Volts
625 mm Hg (25 in. Hg) 0.5 Volts

OXYGEN SENSOR
Mixture Output Voltage
Lean Less Than 0.4 Volts
14.7:1 (Stoichiometric) 0.4 - 0.6 Volts
Rich More Than 0.6 Volts

THROTTLE ANGLE SENSOR
Throttle Position Output Voltage
Throttle Closed (Idle) 0.1 Volts
1/4 Throttle 0.5 Volts
1/2 Throttle 2.0 Volts
3/4 Throttle 3.25 Volts
Full Throttle 4.5 Volts


IGNITION TIMING:
Manual 15 +/- 2° BTDC
Automatic (in gear) 15 +/- 2° BTDC

FUEL INJECTOR
Connector Terminal Resistance 1.5 - 2.5 Ohms

FUEL INJECTOR RESISTOR
Terminals B, C, D, E, to A 5 - 7 Ohms