BMW M3 Forum (E90 E92) - View Single Post - Repeatedly killing PRE-CAT O2 sensors — 274A / 274B every 1–2k miles. HELP

supergoji · 01-09-2026, 07:29 PM

AHH gotcha. sounds like an oem tune isn't going to cut it to test. I sent RK an email, but his last communication was on 12/26.

01-09-2026, 07:29 PM	#24
supergoji Performance nutcase 28 Rep 78 Posts Drives: 08 E92 M3 Join Date: Jul 2009 Location: NY iTrader: (0)	AHH gotcha. sounds like an oem tune isn't going to cut it to test. I sent RK an email, but his last communication was on 12/26.
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