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Yes but there's more to it then that. The whole learn thing is a function of the O2 sensor. The O2 sensor (typical narrow band) can only read a stoich or neutral mixture. What it does is trim the main fueling map which is the map that should be stoich. This part of the equasion usually works fine.....Now for the rest of the system. Artificial enrichment, power enrichment, the whole damn ignition system all have to be done by hand. These are the systems which equate to the power valve and accelerator pump in a carb.Now there is a tool called a wide band O2 sensor which can read other air/ fuel ratios. Great tool! The thing is even with a wide band you still have to know what ratio you're trying to achieve for the different fuel maps. This will vary greatly from engine to engine.In a nutshell this is the reason these sytems don't "learn" like some people like to think they do. This is typical of every electronic fuel injection system on planet earth to the best of my knowledge.
Yes but there's more to it then that. The whole learn thing is a function of the O2 sensor. The O2 sensor (typical narrow band) can only read a stoich or neutral mixture. What it does is trim the main fueling map which is the map that should be stoich. This part of the equasion usually works fine.....Now for the rest of the system. Artificial enrichment, power enrichment, the whole damn ignition system all have to be done by hand. These are the systems which equate to the power valve and accelerator pump in a carb.
Now there is a tool called a wide band O2 sensor which can read other air/ fuel ratios. Great tool! The thing is even with a wide band you still have to know what ratio you're trying to achieve for the different fuel maps. This will vary greatly from engine to engine.
In a nutshell this is the reason these sytems don't "learn" like some people like to think they do. This is typical of every electronic fuel injection system on planet earth to the best of my knowledge.
