code p0171 lean bank1 - seems to run ok. have gas smell inside car. on 2005 Toyota Corolla

2nd time in 2 weeks for code. gas smell happened before code appeared. know about maf,pcv,intake manifold. gas smell not addressed in any threads I have read.

Asked by for the 2005 Toyota Corolla
Have fuel injection system componets checked for leaks. That can set a lean code.
1 more answer , 1 more comment
poss vac hose is off and fumes are causing smell along with previous post
thank you for the help and advice.