Dodge ZB 2005 Service Manual page 1231

DRIVEABILITY - GAS
Symptom:
P0441-EVAP PURGE FLOW MONITOR
When Monitored and Set Condition:
P0441-EVAP PURGE FLOW MONITOR
When Monitored: With engine temperature greater than 170° F, fuel control in closed
loop, engine idling for 2 minutes, no low fuel, MAP less than 15.7 inches mercury and
barometric altitude less than 8,000 feet.
Set Condition: After having passed the Leak Detection Pump (LDP) test, no air flow
through the evaporative system is detected by the EVAP monitor.
GOOD TRIP EQUAL TO ZERO
INTERMITTENT CONDITION
VISUAL INSPECTION
EVAP PURGE HOSE (SOLENOID TO CANISTER)
EVAP PURGE HOSE (CANISTER TO FUEL TANK)
EVAP PURGE SOLENOID VACUUM SUPPLY
EVAP PURGE SOLENOID (LEAKS/STUCK OPEN)
EVAP PURGE SOLENOID
TEST
1 Ignition on, engine not running.
With the DRBIII , read DTCs and record the related Freeze Frame data.
Is the Good Trip Counter displayed and equal to zero?
Yes → Go To 2
→ Refer to the INTERMITTENT CONDITION Symptom (Diagnos-
No
2 Visually inspect the Evap canister. Look for any physical damage or any signs of fuel
that has entered the canister. Any signs of fuel may indicate a bad rollover valve.
Were any problems found?
Yes → Repair or Replace as necessary.
→ Go To 3
No
POSSIBLE CAUSES
ACTION
tic Procedure).
Perform POWERTRAIN VERIFICATION TEST VER - 5.
Perform POWERTRAIN VERIFICATION TEST VER - 5.
110
APPLICABILITY
All
All