Workshop Manual

6E–479
6VE1 3.5L ENGINE DRIVEABILITY AND EMISSIONS
DTC P1441 – EVAP System Flow During Non-Purge (Cont'd)
Step NoYesValue(s)Action
6 1. Check leaks, kinks or pinched hoses at the EVAP
system rubber hose line, and also check if the
rubber hoses are correctly connected or not.
2. Check for a leak from Vent Solenoid Valve and
EVAP system rubber hoses, and also check for
clogged Filter of air separator which is located near
the vent solenoid valve.
Was a problem found? Using the Vacuum Hose
Routing Diagram, repair or re-connect the rubber
hoses correctly.
— Verify Repair Go to Step 7
7 1. Start engine.
2. Remove the Fuel Filler cap.
3. Using the Tech 2, command the EVAP Vent
Solenoid Valve “ON” (closed) and Purge Solenoid
Valve “OFF” (0%).
4. Replace the Fuel Filler Cap.
5. Run the engine at 2500RPM constant while
monitoring “Fuel Tank Vacuum” on the Tech 2.
Does the fuel tank vacuum remain at the specified
value while the EVAP Vent Solenoid Valve “ON”
(closed) and Purge Solenoid Valve “OFF” (0%)?
30 - 40 % Verify Repair
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