2000 Expedition running rough, trying to choke out

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Smack

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Hello,
I'm new here and not sure how this works, but here's my problem. Hoping someone can help me.
About a month ago, engine was missing, check engine light indicated a misfire in one of the spark plugs. I had all plugs changed and a coil. Drove a lot better for about a week or less.
Engine begins missing again, light indicates that it is the EGR valve. I had it not just cleaned, but completely replaced on Friday. My truck drove like a new one that night on about a 100 mile trip.
The next day, it was still running well, but I stopped at an ATM and I did not notice any missfire, rough idle or anything, and it just died. Like someone turned the ignition off. I started it right back up.........and it felt a little rougher idling, but no major deal.
As the day went on, the more I drove, the worse it drove. It feels about like driving a log wagon now. =)
Anyway, went and had the check engine light interpreted and it gave not one, but FIVE codes.

1)P0174-Fuel trim bank two condition
2)P1405-dpfe sensor upstream hose off or plugged
3)P1131-Lack of bank 1 02 at its lean limit
4)P0171-Fuel trim bank one condition
5)P1151-Lack of 02 switches-bank 2 sensor 1

I don't know if I should even add this comment or admission in here.....however I will. I can't help but wonder if it may have something to do with it. I have had my truck for about 1 1/2 years now, mother of two kids, full time job, lots of responsibilities, I get easily distracted and neglect to pay attention to my fuel gage at times..........and my fuel dinger does not work. I have neglected to watch the gas hand approximately six times in the time that I have owned it and allowed it to run completely dry of gas. It has always started right up, but I cannot help but worry that I have caused a problem.

Any help or insight would be greatly appreciated. Thanks in advance.
 
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Smack

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eta: Aside from it dying at the ATM.......it chokes down like it is on it's last leg, however it has yet to actually die again. I have let it sit and idle and it will choke down, like it is not getting gas and then it will rev up by itself, just enough to keep it from dying.
I really can't tell it is running rough when I am driving, only when I am not giving it gas, or when it is just idling. At a stop sign or red light, I have been keeping my foot on the accelerator and the break at the same time.

Thanks again.
 

secondechomatt

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well, just going by the codes,

you need at least one 02, maybe all around replacements are in order. Clean the maf, it's easy to diy. Also, check the vacuum elbow at the back of the intake manifold. There is a line that goes to the pcv, its's made of rubber and is a usual culprit of some of those codes. There is a thread on it on here all about it with some parts numbers as well. Finally, the gas running dry is a big no no and will kill your fuel pump. Fix the things I posted first and if that still doesn't work, then you need a pump.
 

MPTonyT

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Did you ever find out the issue? I have some of the same symptoms but no CEL on the dash. So far i have Cleaned the MAF, Replaces air and fuel filters, New plugs and all. My father-n-law (who is a master tech) seems to think its a DPFE issue as it sounds like its opening the EGR valve at idle which will cause this issue. I'm gonna hook up a snap on reader and see what i can see tonight.
 

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