I have a 1999 Camry LE 5S-FE and it threw a P0171 code. I tested for vacuum leaks (visually and using a can of carb cleaner), did not find anything. What can I do next? I am trying to get a hold of a scan tool so I can gather freeze frame data and will report back. Which components can I test in the mean time? Thanks in advance for your help.
I did have a P0446 code 2-3 weeks ago, replaced the charcoal canister with one from the dealer and reset the code. The code was gone after that. Now, I have this P0171 code - can they be related? The P0171 code is the only one that exists right now.