fuel trim

  1. n_mistry

    Lambda Sensors

    Afternoon folks, I'm getting the check engine light, drives fine so figured its the O2 sensors. This was the case when I used to own an E46 330Ci. Same engine as my Z3 3.0 so guessing its same problem. Went to my usual garage to read code and comes up with "fuel trim range exceeded" on both...
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