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  1. I

    P0171 p0174 codes please help

    It wasn't hard to replace it took less than 5 minutes and was about 25 bucks. The old one just pulls out of the air intake tube and push the new one in
  2. I

    P0171 p0174 codes please help

    Still no check engine light I don't want to jynx it but I think it was that air charge temp sensor that fixed it
  3. I

    P0171 p0174 codes please help

    I will let you know if the light comes back on or not in the next day or two my wife has the truck now because I'm working on her Taurus (replacing a water pump when it's been 8 degrees out is not fun) but ill have the truck on Sunday to go to work and back, 60 miles round trip, and if the light...
  4. I

    P0171 p0174 codes please help

    Ok so here's an update on what's going on with my truck. A couple days ago it got way below freezing again and the check engine light came back on same codes so I disconected the battery to clear the code and that night (still below freezing) it came back on on my way home from work. So that...
  5. I

    P0171 p0174 codes please help

    Ok it has been 2 weeks and one day since I posted and today the light came back on same codes. I cleaned the MAF and had the fuel filter changed in those 2 weeks. I know it doesn't take that long for the computer to reset. In those 2 weeks we had warmer weather in the 40s and 50s then the other...
  6. I

    P0171 p0174 codes please help

    Ok so far what I have done after the light came back the second time is clean the MAF again replaced fuel filter, the old one looked like it was still new. I've looked for vacuum leaks, couldn't find any. The light hasn't come back on yet but it did take over a week for it to come back on the...
  7. I

    P0171 p0174 codes please help

    I've checked for vacuum leak and there isn't any.
  8. I

    P0171 p0174 codes please help

    Thank you I will look into a fuel filter. I just got the truck last spring and I don't know if the fuel filter has been changed. If any one else has any other advice I would love to hear it.
  9. I

    P0171 p0174 codes please help

    I understand what the codes mean what I want to know is why it would be gone for over a week after cleaning the MAF and driving over 1500 miles, I know it doesn't take that long for the computer to reset. Is it possible my MAF is going bad? That is the only thing I did was clean the MAF and it...
  10. I

    P0171 p0174 codes please help

    I have a 2002 expedition 5.4L XLT and about a week and a half ago I got the p0171 and p0174 codes so I cleaned the MAF and throttle body I looked for vacuum leaks and couldn't find any and the check engine light was reset. We drove my truck over 1500 miles over thanksgiving and the whole time...

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