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BMW 3-Series (E90 E92) Forum
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Unstable AFR at cruise
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| Today, 11:57 AM | #1 |
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Rep 92
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Unstable AFR at cruise
08 335i , MHD & JB4 - car just started this a few days ago. At cruise/constant throttle the AFR will swing a point, sometimes 1.5. No misfire or CEL. Anyone else seen this? Possibly a failing O2?
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