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I have a code P0440 and do not see it listed in the Error Codes. Several weeks ago my engine light came on (147, i believe....is was oxygen sensor heater element not working properly) but would go off a day later. Seemed to occur when we had really damp cold weather ..weird.

Now it seems to be staying on with a P0440. No other codes appeared.

Any ideas?? Is their a more comprehensive list of codes? I got the list from this site...... Thanks -Rick
 

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rdownton said:
I have a code P0440 and do not see it listed in the Error Codes. Several weeks ago my engine light came on (147, i believe....is was oxygen sensor heater element not working properly) but would go off a day later. Seemed to occur when we had really damp cold weather ..weird.

Now it seems to be staying on with a P0440. No other codes appeared.

Any ideas?? Is their a more comprehensive list of codes? I got the list from this site...... Thanks -Rick
Hey Rick: This should help you out:
P0440 General evap system failure

Possble causes

puge solenoid vac supply(check for cracked rubber lines in engine bay)
purge solenoid
ground circuit open
Nvld assembly(common problem,nvld switch not closing)
nvld sense circuit open
PCM
The above info was taken from this link: http://www.dodgeintrepid.net/forums/showthread.php?t=46741&highlight=P0440
 

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Yep I have the P0440 code on my 2002 ES with 76,000 miles. Things I have done:
Cleared code via the ignition, went away for a few days came back.
Pulled the fuse in the Engine Bay went away for a few days came back
Replaced Gas Cap went away for a few days came back.

Anything else I should try?

Thank gawd I just had the emission check and got a tag for 2 yrs. My next question is can any harm be done by driving it? She still runs GREAT!

Thanks,

Gary
 

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should be harmless.
what have you checked in post 2 as causes?
start at the vacuum lines near the throttle body and work back.
 
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