Lean code! Need advice!

Be careful installing that iac......gasket failure there could hydro lock the engine....
one of the dumbest things toyota designed into these.....

 

Hey everyone! Sorry for it being so long before I checked back in for an update, but. On the bright side! After ordering new fuel injectors, fpr, an fuel filter, I replaced those well in the mist of replacing the fuel injectors I accidentally stripped the threads for the banjo bolt on the fuel rail. Well after Ordering a new one I got everything back together and BAM!! My p0171 code was fixed! But then had a problem with iac valve, well one of my wires came out the back of the plug for the iac, so thankfully I had order a iac with a new gasket an a new pig tail so I replaced it (the pigtail) an bam! All check engine lights are off and truck is running and idle great! So thank you for everyone’s advice and support on this, an I hope this helps someone else or if someone reads this and needs advice from the things I done, feel free to message me or comment an I’ll do my best to help! Thanks everyone again!!