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      04-30-2013, 07:05 AM   #23
DanFromTucson
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Drives: Z4 M Coupe
Join Date: Aug 2011
Location: Austin, TX

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Imran@Evolve wrote: "...I would check the lambda sensors are plugged in correctly and not damaged as we have seen this with header installs."

Did you investigate that? I'm about to install headers with an Evolve tune, so I'm hoping to learn from your troubleshooting.
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