Engine Code P0171

[Marinna]

Does this happen at one particular station, or all Chevron stations? If it’s one particular station, there could be something wrong with his tanks in the gas may be getting contaminated somehow.

All gas comes from the same place and it’s the same gas right up until the additives for the particular brand anre added.

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I have only tried Chevron once, but I doubt LC engine will have complaint to Chevron gas in general. We'd have a lot more people screaming here already in that case. Toyota is known to design cars that is more tolerant to various margin of uses (a.k.a. taking more abuse) and fuel injector, fuel pump, O2 and rest of the sensors are basically brand new so it can't be faulty just after 3000 miles uses. But I don't know how to properly triage this issue and I hope there are people sharing their past experience particularly on this type of hybrid power train.

BTW When P0171 shows up. a bunch of systems on the car will automatically disabled. It would still drive but properly not going to be a pleasant experience.