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  1. Identifying lambda sensor location by name 2.0ts (pre vs post cat, 1vs 2)

    Alfa 147, 156 & GT
    I'm attempting to wire a lambda sensor directly to the ecu what is the lambda sensor called that is in control of the air/fuel mixture (pre-cat1 or pre-cat2 or post-cat1 or post cat2). This is the pinout diagram me3.1 That I found online. A1, Not connected A2, Fuel vapour solenoid valve...
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