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Re: Socket 2 fault codes 121 & 232 700 1989

Start by de-oxidizing the AMM connector and re-connecting. That may be the source of the AMM signal anomaly. While you are at it, do the others under the hood as well, since oxidized connectors are a known problem with unexplained driveability symptoms.

How old is the O2 sensor? Did any symptoms appear before all this happened?






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