Can anyone tell me what this sensor is on the M5 exhaust? It is the sensor on the driver’s side near the collector. It looks like it is only on the driver’s side pipe and ahead of the 02 sensors which are further downstream but ahead of the Cat. I cannot find this on the parts illustrations. Does someone have a part # or know what it is for? I am trying to troubleshoot the p0471 fault and am wondering if this could have any impact. Thanks in advance.
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