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  1. System too lean Bank 1 code

    Repair & Maintenance
    Help system too lean Bank 1 code Hey I own a 2000 Celica GT-S. I've been having error codes with my OBD2 Scanner reporting a P0171 System too lean bank 1 code. At first it only showed up on the scanner but now the check engine light turns on. The sympoms ive been having mainly include a rough...
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