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      02-27-2025, 10:12 AM   #9
wheatpaste
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Drives: 08 E92 M3
Join Date: Dec 2012
Location: Bay Area

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I know it's annoying but I would seriously try the two middle parts of the drive cycle at least a few more times since these are specifically what test the oxygen sensor readiness:



Use the digital speedo in the instrument cluster to more accurately gauge your speed. You can't exceed 3000 RPM, can't have excessive throttle, can't exceed 60 MPH (30 MPH for the low speed portion), can't touch brakes, can't touch clutch/change gears or else the timer pauses. You don't have to do everything all at once, but the clock will effectively pause every time you do any one of the things above.

It will take you longer than you think unless you have rural/unpopulated areas where you can drive slowly at steady speeds for several minutes at a time. It feels very unnatural but if you follow the rules of the drive cycle it should work.
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