2003 f150 error code
Thread Starter
Senior Member
Joined: Jan 2015
Posts: 310
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From: KC
2003 f150 error code
Lately my engine light has been popping on at random times of driving. The code is P0171. I don't feel any power losses or other symptoms when this occurs... Got some pics but not sure if they'll help.. Anybody know how to fix this? Or what's causing it?
Complete Asshat
Joined: Apr 2011
Posts: 607
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From: Canada
Based on your fuel trims. Adding 17-25% more fuel, you probably have a vacuum leak under your hood. You'll probably get a code soon about bank 2 also being lean. Start checking all the regular vacuum leak areas. There are a ton of info on them here.
Thread Starter
Senior Member
Joined: Jan 2015
Posts: 310
Likes: 14
From: KC
oh great, thanks for the info! I'll check them all them out tonight!
Thread Starter
Senior Member
Joined: Jan 2015
Posts: 310
Likes: 14
From: KC
