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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: 762
Mein Auto: BMW F01
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.

Stuart
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2008 F01 - Sophistograu with Saddle Brown Leather
Retrofits:
Night Vision, Digital TV, Heated M-Sport Steering Wheel + Paddles, Combox, 6NF Baseplate, 6NR Apps, Rear Entertainment System, Automatic Boot Close and Surround View Cameras.
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