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On Board Diagnosis Logic
NFEC1092
DTC No.
Trouble diagnosis
name
DTC Detecting Condition Possible Cause
P1444
1444
EVAP canister purge
volume control sole-
noid valve
The canister purge flow is detected during the
specified driving conditions, even when EVAP can-
ister purge volume control solenoid valve is com-
pletely closed.
I EVAP control system pressure sensor
I EVAP canister purge volume control
solenoid valve (The valve is stuck
open.)
I EVAP canister vent control valve
I EVAP canister
I Hoses
(Hoses are connected incorrectly or
clogged.)
DTC Confirmation Procedure
NFEC1093
NOTE:
If “DTC Confirmation Procedure” has been previously conducted,
always turn ignition switch “OFF” and wait at least 10 seconds
before conducting the next test.
TESTING CONDITION:
Always perform test at a temperature of 5°C (41°F) or more.
DTC P1444 EVAP CANISTER PURGE VOLUME CONTROL SOLENOID VALVE
On Board Diagnosis Logic
EC-574
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