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  1. MAF sensor or something else?

    Mechanical
    hey guys, so my corsa 1.2 has the Lean fuel trim bank 1 code (yay šŸ„ŗ) iā€™ve ran a diagnostics on it and found that the Long term fuel trim regulates back close to 0% instead of 25%+ at idle if the revs go up. however iā€™ve not found any vacuum leaks and the car has no issue such as starting or...
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