How do you tune for a larger drive-by-wire throttle body without an adapter, and which ETC tables need updating?
Here is what the documentation says. Each point links to its source; tables and names vary by computer, operating system and tuning software.
- GM LS, LSA: On the GM E38 computer, installing the 102 mm drive-by-wire throttle body requires adjusting the ETC area scaler plus throttle-position and airflow-correlation diagnostics. (Aeroflow Performance)
More in tuning fundamentals, or build a checklist for your swap with the tune checklist tool.
Confidence: medium — sources disagree or are limited; check the sources below.
Further reading
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Sources
- AEROFLOW PERFORMANCE FLY BY WIRE THROTTLE BODY — Aeroflow Performance