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System Description
NGEC0373
NOTE:
If both DTC P0510 and P1447 are displayed, perform trouble diagnosis for “DTC P0510” first. (See
EC-433.)
SEF865Z
In this evaporative emission (EVAP) control system, purge flow occurs during non-closed throttle conditions.
Purge volume is related to air intake volume. Under normal purge conditions (non-closed throttle), the EVAP
canister purge volume control solenoid valve is open. Purge flow exposes the EVAP control system pressure
sensor to intake manifold vacuum.
On Board Diagnosis Logic
NGEC0374
Under normal conditions (non-closed throttle), sensor output voltage indicates if pressure drop and purge flow
are adequate. If not, a fault is determined.
DTC No. Malfunction is detected when ... Check Items (Possible Cause)
P1447 쐌 EVAP control system does not operate properly.
쐌 EVAP control system has a leak between intake manifold
and EVAP control system pressure sensor.
쐌 EVAP canister purge volume control solenoid
valve stuck closed
쐌 EVAP control system pressure sensor and the
circuit
쐌 Loose, disconnected or improper connection of
rubber tube
쐌 Blocked rubber tube
쐌 Cracked EVAP canister
쐌 Closed throttle position switch
쐌 Blocked purge port
쐌 EVAP canister vent control valve
DTC P1447 EVAPORATIVE EMISSION (EVAP) CONTROL
SYSTEM PURGE FLOW MONITORING
KA24DE
System Description
EC-509
FE
CL
MT
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
GI
MA
EM
LC
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