From: paul.blomberg@cox.net   
      
   I have the same truck and solved the problem by cleaning the MAF and ran   
   some fuel injector cleaner through the engine on a two hour trip.  Engine   
   light has been gone for 6 weeks.  I also checked for an air leak (air   
   induction system) between the MAF and engine including any lose or cracked   
   vacuum lines (nothing found).  The repair manual says to check the following   
   (in order):   
       P0171  System too Lean  (Fuel Trim)   
           Air induction system   
           Fuel pressure   
           Injector blockage   
           Heated oxygen sensor (bank 1 sensor 1)   
           Mass air flow meter   
           Engine coolant temp. sensor   
      
   I didn't think there was a problem with the fuel pressure as high RPM power   
   wasn't a problem.  I went with the cheapest fixes first.   
      
   Paul.   
      
   "Scott"  wrote in message   
   news:plfHj.205$6%2.48@newsfe06.lga...   
   > Hey,   
   >   
   > I made it by Advance today when it came on and the code P0171 came up with   
   > something about lean in bank one, I think. The code was definitely P0171   
   > and he said it could be the Maf sensor was bad or just dirty, so I bought   
   > some cleaner for that and it was dirty. So now I'll drive it and see if it   
   > comes back on.   
   >   
   > Does anyone have a better interpretation of that code?   
   >   
   > Thanks,   
   >   
   > Scott..   
   >   
      
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