FuelingData Logging
Why Commanded Fueling May Be Unavailable
Why some logs contain actual AFR or lambda without a compatible commanded fueling channel.
By PullScan Test Content · Published July 10, 2026 · Updated July 20, 2026
Why Commanded Fueling May Be Unavailable
Logging ecosystems expose different channels depending on platform, logger, firmware, and selected logging configuration.
An actual AFR or lambda channel does not prove that the file also contains a commanded fueling target. Fields describing enrichment or auxiliary fuel output must not automatically be treated as commanded AFR or lambda.
Without a compatible target, deviation from command cannot be calculated. Actual fueling stability, movement, bank consistency, and comparable operating windows may still provide measured observations.