I pulled this code on my '04 Dakota, 4.7L Quad Cab. I think when I gassed
her up I didn't properly close the cap. The light is on in my display. If I
disconnect the battery for a while, the light will turn off, and I can
re-check the code, correct? If no code, than I should be good to go, right?
Or does the computer store the code and I will still get it? Just want to be
sure it will clear if in fact it was my own carelessness and e problem
doesn't exist, and not flag me to replace a part I don't need too.
Cecil
If the problem was caused by the gas cap being loose, the computer will
detect the correction and turn the light off by itself in a short period of
time and you need to do nothing for that to happen. You can disconnect the
battery to clear the codes if you wish but that also makes the computer
forget everything else that it learned and it has to start all over again.
The light may not come back on right away but if the problem is more than
just a loose cap, it will light the MIL again. If you have to take it for
emissions inspection any time soon, doing that will cause you to fail as
there are some long term tests that need to be completed and passed by the
computer that will be reset and restarted by disconnecting the battery or
even just clearing codes.

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>I pulled this code on my '04 Dakota, 4.7L Quad Cab. I think when I gassed
> her up I didn't properly close the cap. The light is on in my display. If
[quoted text clipped - 8 lines]
>
> Cecil
Detailing Dude - 08 May 2008 19:04 GMT
Thank You
Now, since it hasn't cleared from my dash (without unplugging), I reckon
it's broke.
Is this a dealer problem or can a simple guy like me fix it?
Cecil
> If the problem was caused by the gas cap being loose, the computer will
> detect the correction and turn the light off by itself in a short period of
[quoted text clipped - 7 lines]
> computer that will be reset and restarted by disconnecting the battery or
> even just clearing codes.
PeterD - 08 May 2008 22:37 GMT
> If you have to take it for
>emissions inspection any time soon, doing that will cause you to fail as
>there are some long term tests that need to be completed and passed by the
>computer that will be reset and restarted by disconnecting the battery or
>even just clearing codes.
That does depend on the state and the methods they use... Here in NH
you can clear the codes and immediately run the emissions and pass it.
Other states the various monitors must be run to completion (usually a
complete drive cycle) to pass--it varies.
Best bet, if you have to do emissions, is to clear the codes about a
week before. If they come back quickly, there's a problem you probably
will have to address. If not, you are just plain lucky!