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Registered User
Join Date: Apr 2015
Posts: 1
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1996 M3 failed SMOG at 15 MPH
Hi All,
Im a little perplexed. 1996 M3, 230k miles, babied, use redline Oil 5w-30 failed the smog test TWICE! Same HCO component fail at 15 Mph. ALL other components passed...so Im confused. I have read articles, ranging from O2 sensors, to Mass Air flow sensors. Car runs great, no stalls, early morning starts are smooth, no rough idles.... acceleration is great on hwys... I am ordering O2 sensors and if anyone wants a a copy of the smog test, i'd be happy to send it... any ideas are really appreciated thanks |
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04-01-2015, 11:00 PM
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