L87 6.2L EcoTec3 Tuning Knowledge - 4 calibration entries

These 4 entries document the L87 6.2L EcoTec3: what the log shows, how the parser reads it, and what tuners changed in response. The largest bodies of evidence are Fuel System / Fuel Pump, Fuel system / HPFP calibration reference, and Fuel system / HPFP scaling reference. This page shows aggregate counts only; individual KB rows, source details, and tuning findings remain available inside the signed-in app.