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Lamda

EFI Tuning Fundamentals

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Discussion and questions related to the course EFI Tuning Fundamentals

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is it possible to tune a car with the factory lamda senor, for example a 2002 subaru wrx, is the oem lamda sufficient or is it necessary to have a wide band

The stock Subaru does display as a wideband value but I always use an external wideband as the OE one is very limited in range.