Help- P0171 & P0174 system too lean codes

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dave moore

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Joined
Jun 8, 2004
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Location
Jackson, WI
my service light came on at 75,000 mi on my '01. i had the code read: P0171 system too lean (bank 1) and P0174 system too lean (bank 2). I have already replaced the DPFE sensor last october. I changed the fuel filter again and the codes still remain. Should i have the injectors cleaned? Clean the O2 sensors? Clean the MAP sensor- I do have a K&N. Any suggestions?
 
I see you have an 01 Trac. If you have a Job 1 you will NOT have the hose that is in the picture. You will have another issue.



PRAY you have a job 2 in this case as it is super easy to fix and the problem will be solved. Tod Z stocks one or two of the complete hose assembly's if you find you need one, (and you will find that you do need one).......LOL
 
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