Page 505 - Foton Workshop Manual - Tunland (AT)
P. 505
DIAGNOSTICS - ENGINE CONTROL SYSTEM 04-359
Fault phenomenon Possible reasons Refer to
4. Fuel line
5. Intake heater
6. Intake system
7. Exhaust system 04
8. ECM
1. Turbocharger
2. Intake system
3. Exhaust system
Chapter 04 Diagnosis- the
Low engine output 4. Fuel system motor control system, low
engine output
5. EGR system
6. Fuel
7. ECM
1. Fuel
2. Fuel injector Chapter 04 Diagnosis- the
The engine runs rough or
3. Fuel system motor control system, the
misfiring
4. EGR system engine runs rough or misfiring
5. ECM
1. Fan Chapter 04 Diagnosis- the
The engine fan doesn't work, 2. Air conditioning circuit motor control system, the
works unsteadily or works engine fan doesn't work, work
continuously 3. Fan control circuit unsteadily or misfire
4. ECM continuously
1. Battery
2. Starter or starter circuit
Chapter 04 Diagnosis- the
Slow motor turning motor of 3. Crankshaft motor control system, slow
engine (electric starter motor) 4. Camshaft motor turning motor of engine
(electric starter motor)
5. Timing mechanism
6. ECM
1. Engine oil
Chapter 04 Diagnosis- the
Postprocessing diesel 2. Fuel system motor control system,
particulate filter - excess 3. Crankcase ventilation postprocessing diesel
removal for soot system particulate filter - excess
removal for soot
4. Post precessing DPF
Postprocessing diesel 1. Fuel Chapter 04 Diagnosis- the
particulate filter - excessively motor control system,
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