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Old 04-03-2010, 02:00 PM   #1
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Dtc p0441

evap purge system performance.
anyone know what this is?

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Old 04-03-2010, 03:54 PM   #2
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From the manual:
Quote:
quote:P0441-EVAP PURGE SYSTEM PERFORMANCE (CONTINUED)
For a complete wiring diagram Refer to Section 8W.
² When Monitored:
Cold start test. Engine Running. Small Leak Test Passed.
² Set Condition:
The PCM activates the EVAP Purge solenoid gradually increases to maximum flow. During flow, the PCM
looks for the NVLD switch to close. If the PCM does not see the NVLD switch close at maximum flow an error
is detected. Two Trip Fault. Three good trips to turn off the MIL.
Possible Causes
EVAP PURGE SOLENOID VACUUM SUPPLY
EVAP PURGE SOLENOID
Check the hoses on the EVAP system for cracks, etc.
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Old 04-03-2010, 04:04 PM   #3
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Dtc p0441

not to sound dumb.. but what/where is the EVAP system?
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Old 04-03-2010, 05:02 PM   #4
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Should be in front of the gas tank.

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Old 04-03-2010, 05:35 PM   #5
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Dtc p0441

as far as i can tell they all look good.
does the code hurt anything?
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Old 04-03-2010, 05:38 PM   #6
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Did you recently fill the gas tank prior to this code? You might want to try to clear the code (using a programmer or disconnect the negative terminal) and see if the DTC comes back. Might just be a fluke.
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Old 04-03-2010, 08:20 PM   #7
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Dtc p0441

it comes and goes. i cleared it and sometimes it comes back..
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Old 04-03-2010, 10:37 PM   #8
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Dtc p0441

Evaporative emissions basically just contains and controls the fuel vapor. It wont hurt anything.
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Old 04-04-2010, 02:55 PM   #9
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Actually part of the EVAP system is under the hood. See if those lines are ok too.

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Old 03-04-2011, 09:03 PM   #10
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Dtc p0441

would this cause low idle?
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