Operation CHARM: Car repair manuals for everyone.

California Vehicles





TEMPERATURE CHART


Coolant Temperature Sensor
Between sensor terminals Refer to TEMPERATURE CHART

Digifant Control Unit
Power supply to terminal 19 Battery Voltage
Engine speed limit 6500 +/- 50 RPM

Fuel Injector
Each injector 15 - 20 ohms

Intake Air Temperature Sensor
Between terminals 2 and 3 Refer to TEMPERATURE CHART

Idle Stabilizer Valve
Between terminals on valve 2 - 10 ohms

Knock Sensor
Between sensor terminals infinite ohms

Oxygen Sensor
Preheat Resistor Cold - less than 68°F (20°C) 3 ohms
Preheat Resistor Hot - greater than 662°F (350°C) 13 ohms
Output Voltage (with CO adjustment within specs) 0.3 - 0.7 volts

Tune-up Specifications
Air/Fuel Ratio (CO content) 0.7%
Air/Fuel Ratio-Limits [1] 0.3 - 1.2%
Timing [2] 6° +/- 1° BTDC
Timing Advance [3] 30° +/- 3° BTDC
Idle RPM [4] 800 +/- 50

[1] Check CO content with the oxygen sensor connected.
[2] AT 2300 RPM, and coolant temperature sensor disconnected.
[3] Normal operating temperature, with coolant temp. sensor connected, at 4500 RPM. Add initial timing.
[4] A/C off.