Page 500 - Foton Workshop Manual - Tunland (AT)
P. 500
04-354 DIAGNOSTICS - ENGINE CONTROL SYSTEM
Fault phenomenon Possible reasons Refer to
4. Fuel system
1. ECM
2. Intake system
Chapter 04 Diagnosis-the
04 The engine turns off when it 3. Electronic throttle valve
motor control system, the
cold idles
4. Coolant temperature motor will turn off when idling
sensor
5. Exhaust system
1. ECM
2. Intake system Chapter 04 Diagnosis-the
The motor will turn off when
3. Electronic throttle valve motor control system, the
starts
4. Fuel system motor will turn off when starts
5. Injector
1. Intake system
2. Fuel system
3. Electronic throttle valve
Chapter 04 Diagnosis-the
Slow, dull and imbalanced of 4. Electronic accelerator motor control system, slow,
the accelerating reaction pedal stagnancy and imbalanced of
the accelerating reaction
5. Turbocharger
6. Exhaust system
7. ECM
1. Intake system
2. Fuel system
3. Electronic throttle valve
4. Electronic accelerator Chapter 04 Diagnosis- the
Bad acceleration, poor pedal motor control system, bad
performance acceleration, poor
5. Turbocharger performance
6. Injector
7. Exhaust system
8. ECM
1. Brake switch
Chapter 04 Diagnosis- the
PTO or cruise control can't 2. Cruise control /PTO motor control system, PTO or
work selector switch
cruise control can't work
3. ECM
Under PTO or cruise control 1. Fuel system Chapter 04 Diagnosis- the
mode, motor is unstable idling motor control system, under
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