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TROUBLE DIAGNOSIS
EC-1237
[YD (WITHOUT EURO-OBD)]
C
D
E
F
G
H
I
J
K
L
M
A
EC
SYSTEM — Basic engine control system
SYMPTOM
Reference page
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEAT/HIGH ENGINE COOLANT TEMPERATURE
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
ABNORMAL SMOKE COLOR
DEAD BATTERY (UNDER CHARGE)
Malfunction indicator illuminates.
Can be detected by CONSULT-II?
BLACK SMOKE
WHITE SMOKE
Warranty symptom code AG AH AJ AK AL AM AP HA
Fuel pump 5 5 5 5 1 1 —
Fuel injector 33344411EC-1314
Glow control system 1 EC-1457
Engine body 3 3 3 3 1 3 EM-208
Fuel transport pump EC-1487
EGR system 3 EC-1465
Air cleaner and duct 3 EM-133
Fuel rail pressure relief valve EC-1277
ENGINE CONTROL
Fuel pump circuit 4 4 4 4 1 1 EC-1422
Fuel injector circuit 1 1 1 1 1 1 1 1 EC-1314
Mass air flow sensor circuit 1 1 1 EC-1280
Engine coolant temperature circuit 1 1 1 1 1 EC-1291
Vehicle speed signal circuit 11 LAN-4
Accelerator pedal position sensor circuit 1 1 1 EC-1297
Fuel rail pressure sensor circuit 11EC-1307
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