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Guest
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Hi,I have a 99 323i and can't seem to figure out why my engine light is still on. I have read the codes which are 1087 and 1088 and have replaced all four of the oxygen sensors. Still the check engine light stays on, any idea why?
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08-07-2013, 05:34 AM
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Moderator
Join Date: Jul 2012
Location: New England
Posts: 3,189
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The codes are for slow response. I would check the intake and exhaust system for a leak. A leak can cause the oxygen sensors to react slowly.
- Nick |
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08-07-2013, 05:34 AM
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