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      10-15-2018, 01:10 AM   #100
dk79
First Lieutenant
United_States
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Drives: 2018 F90 M5 Marina bay blue
Join Date: Feb 2013
Location: Gilbert, AZ

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Is there any mention of air to fuel ratio during the testing phase of racechip to make sure that the car is not running too lean which can lead to engine failure.
From online info new m5 already runs lean and piggybacks can make it worse. True dme tune can alter fuel tables to rectify the problem.
Appreciate 0