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Old 12-03-2012, 04:13 PM
stuartjohn24 stuartjohn24 is offline
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Location: Chippenham, Wiltshire, UK
Join Date: May 2011
Posts: 684
Mein Auto: BMW E65 745i
Still sounds like vacuum leak or perhaps faulty MAF, very unlikely to have two oxygen sensors go down at the same time. Mixture control is done with the pre cat sensors, so cat will have no affect.

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