OBD II P0171 Fuel System Too Lean (Bank 1)
Lean Mixture = Too much air, not enough fuel
It seems fairly common on this board through my searches, but it also very common on boosted rides. Mine is not.
I did have a INJEN SRI in there, I took it out today (reinstalled the OEM). Cleared the codes, started driving, and of course it came back.
According to my Googling, a common misdiagnosis is "change your 02 sensors". I got my 02 sensors changed when I bought the car by the Toyota dealership, about 5 years ago.
Here's a summary what I've done:
*Cleaned the MAF with MAF cleaner
*Reinstalled OEM Intake
Any other ideas? My next step is to get some fuel injector cleaner (which I usually avoid).
- SolaraGuy Street Racer
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