Reading the DME's learned multiplicative and additive mixture corrections against the service-information definition of each parameter, rather than translating BMW and MINI correction factors into generic fuel-trim percentages.
2010 MINI Cooper (R56)
A 2010 MINI Cooper read lambda 0.923 against a commanded 1.000 after an upstream oxygen sensor replacement. How to correlate the mixture PIDs before buying another part.
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Florida MV Registration #MV114761