How does the E38 ECU use MAF versus VVE tables for fueling, and how do I trim each one?
Here is what the documentation says. Each point links to its source; tables and names vary by computer, operating system and tuning software.
- E38, E67; LS Gen IV; 2005-2013: LS ECMs run a hybrid fueling mode that can be strictly mass airflow, a blend of MAF and speed density, or purely speed density, depending on operating conditions. (LSX Magazine)
More in who tunes it, or build a checklist for your swap with the tune checklist tool.
Confidence: medium — sources disagree or are limited; check the sources below.
Community discussion
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Sources
- Late-Model Tuning 101 With EFILive — LSX Magazine