System Specifications

Ignition Timing:

Carbureted Engine:
Manual 49state 24 +/- 2° BTDC
Manual California 20 +/- 2° BTDC
Automatic (in gear) 15 +/- 2° BTDC


Fuel-Injected Engine:
Manual 15 +/- 2° BTDC
Automatic (in gear) 15 +/- 2° 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 1.5-2.5 Ohms

FUEL INJECTOR RESISTOR

Terminals B, C, D, E, to A 5-7 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