2025-10-02 15:20 UTC
@kwahoo Did you miss the part of the video where I show the computer commanding equivalence ratios above and below 1?
The computer is deliberately causing those oscillations and we can see it in the scan tool.
Replies (1)
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@kwahoo@101010.pl 2025-10-02 17:38
@TechConnectify Yes, the ECU causes it, but only because the way the lambda sensor works. The algorithm is simple: if lambda is below 1 (rich) decrease fuel amount till lambda passes 1 (lean). Then start increasing fuel till lambda goes under 1 again. ECU cannot command "stay at lambda 1", since the sensor cannot measure that value and there is no valid feedback.