Fuel Injector

TEMPERATURE CHART

Air Flow Sensor
Between terminals 6 and 7 500 - 1000 ohms
Between terminals 17 and 21 (flap moved) Resistance change

Coolant Temperature Sensor
Between sensor terminals Refer to TEMPERATURE CHART

Digifant II Control Unit
Power supply to terminal 14 Battery Voltage
Engine speed limit 6500 +/- 50 RPM

Fuel Injector
All injectors at the fuel rail plug connector 3.7 - 5.0 ohms
Each injector disconnected 14 - 18 ohms

Intake Air Temperature Sensor
Between terminals 6 and 9 of air flow sensor Refer to TEMPERATURE CHART

Idle Stabilizer Valve
Between terminals on valve 2 - 10 ohms

Knock Sensor
Between terminals 1 and 2 infinite ohms

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

Tune-up Specifications
Air/Fuel Ratio 0.7%
Air/Fuel Ratio-Limits [1] 0.3 - 1.1%
Timing [2] 6° +/- 1° BTDC
Timing Advance [3] 30° +/- 3° BTDC
Idle RPM [4] 800 +/- 50

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