ECU TESTING TOOL

ABBREVIATIONS IN THIS MANUAL:
EECS:Engine Electronic Control System
ECU:Electronic Control Unit
EGR: Exhaust Gas Recirculation
PWM: Pulse Width Modulated       
AFS:Air Flow Sensor
A/F: Air-Fuel Ratio                 
IAC:Idle Air Control

1,Measure Pulse Width:
2. Measure Signals Frequency (Hz)
3. Measure Engines Injection Pulse Width (ms)
4. Measure the Voltage:
5. Measure the Digital Signals DUTY
6. External Signals LED Test.
7. Simulate Output the Voltage Signal and Resistance Signal.
8. Simulate Output the Frequency Signal.
9. Simulate output the PWM signal.
10. Simulate Output the PWM Drive Signal.
11. The Active Test of the Equipment.

 Function

The function of active testing:
1. When simulating signals like voltage, resistance, frequency, you can observe injection pulse width simultaneously.
2. You can examine the injection pulse width of an engines starting status.
3. By means of observing injection pulse width (ms), you can do these tests to the Electronic Fuel Injection engine:
Add rich mixture at cold starting;
Add rich mixture at running;
Add rich mixture at Idle;
Adjust AFS;
Feed back capability test of Oxygen signal under closed loop status;
Sever Fuel test; MAP test; etc.
4. You can test the battery voltage of the engines stating status.
5. When observing signals frequency and pulse width, you can examine signals voltage and DUTY at the same time.
6. The blue LED can do the induce test of ignition high tension.

The function of measuring:
1. Examine external injection pulse width. (0.00-99.99ms)
2. Examine external voltage (0-10V).
3. Examine external signals frequency (0-9999Hz).
4. Examine external signals DUTY (5%-100%).
5. Examine external impulse with flashing LED.

The function of simulating sensor signal:
1. 58+2 signal (58Hz-900Hz), simulate crankshaft position signal.Have 2 shifts: 5Vpp, 10Vpp.
2. Sin wave signal (20Hz-900Hz), simulate car speed,gear speed, have 2 shifts: 5Vpp, 10Vpp.
3. Rectangle wave (10Hz-10KHz), simulate various kinds ofdigital signals, have2 shifts: 5Vpp, 10Vpp.
4. One way changeable resistance signal(50