Operation CHARM: Car repair manuals for everyone.

System Specifications


IDLE MIXTURE:

Idle CO 0.1%

IDLE SPEED:

Fast Idle Speed:
Manual 1,000-2,000 rpm
Automatic 1,000-2,000 rpm

Idle speed w/headlights and cooling fan OFF
Manual 750 +/- 50 rpm
Automatic (in "N" or "P") 750 +/- 50 rpm

IGNITION TIMING:

At Idle 18 +/- 2° (RED) BTDC



SENSOR SPECIFICATIONS:

ATMOSPHERIC PRESSURE (PA) SENSOR

Atmospheric Pressure/Output voltage chart
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




FUEL INJECTOR

Connector Terminal Resistance 0.6-1.6 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 chart

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 Chart

Throttle Closed (Idle) 0.2 Volts
1/4 Throttle 0.5 Volts
1/2 Throttle 1.75 Volts
3/4 Throttle 3.0 Volts
Full Throttle 4.0 Volts