Check engine light code P0171
Regarding my 04 Camry 4 cyl., I have done some reading and have come to understand that there could be a few reasons I am getting the P0171, but I have to say that the car runs great and no excessive fuel consumption either. So what would be the most economical first approach to resolve the issue? I have seen posts that recommend engine, or fuel injector cleaners to stuff to clear out the crap in the catalyst. Is there any good reason that I should consider doing any of this, or I should just go after changing sensors?