Thread: What did you do to / for your E53 today??
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Old 05-27-2025, 11:51 PM
Salty B. Salty B. is offline
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Join Date: Jun 2023
Location: Louisville, KY
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Quote:
Originally Posted by X5chemist View Post
Salty B,
Graph the voltages.
Go here to the 26:00 minute mark. See the front O2 sensors graph up and down. The rear o2 sensors have more steady voltage reading.
The rear sensor is bank 1 or 2?

I noticed the delta on bank 2 vs bank 1 and thought maybe that was causing the SES, but fuggifino.
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2001 E53 M54 5MT Oxford green over crusty black leather
2014 F30 N55 6MT mineral gray over red leather
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