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  1. Too Lean off idle Bank 1

    New Member Introductions
    Hello All, I am new to the forum. I have a 2004 VW Jetta with 2.0L engine. Recently the ck eng light came on and when I use my OBD scan tool it says TOO LEAN OFF IDLE-BANK 1. I have thus far ran 2 bottles of high-quality injector cleaner, changed the fuel filter, and engine coolant temp...