This value is the one that sets how long the fuel takes to re-enter the air charge after being deposited on the manifold walls.
Increasing this will have the effect of making the enrichment last for a longer time. When tuning increase this value if your logs show that the AFR goes lean towards the end of the acceleration.
Similarly reduce this value if the AFR becomes increasingly rich during the acceleration.
This value sets how much of the fuel lands on the walls during an acceleration event. Increasing this value will cause a larger quantity of fuel to be added to the inlet charge.
A large value here implies that a lot of the fuel is landing on the walls of the inlet manifold, requiring a large value may indicate that the spray pattern of the fuel injectors is incorrect for their positioning or the manifold type.
While tuning if you are failing to prevent the AFR from becoming leaner then increase this value.
This is about 1 second worth of log, during a 2-3-4 shift at low-ish RPM, but near wide open throttle. Worst case scenario for AE!
The yellow trace on the top graph, AfrRatio, is a ratio of target vs. actual. If the engine is lean, it goes below 1, and rich above 1. Graph is scaled to +-20%. I'm using this because my actual AFR target varies from 14.7 all the way down to around 11.5. This swing causes the AFR signal to look like the ECU is doing a poor job, when in fact the setpoint is moving by nearly 30%.
There's a bit of a spike rich-then-lean during the shifts, but it's not bad (results in a nice burble out of the exhaust :lol:), and resolves once back on the throttle. Some of this is caused by the phase shift between the AFR target and measured AFR, but some of it is real.
