Quote:
Originally Posted by Stan
Fuel injectors don't work like that in modern EFI systems. The ECU will still follow its closed-loop programming until the peak capacity of the injector is reached, and then it will lean out, but in an uncontrolled manner.
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If you remap the fuel table in a modern EFI system and tell the injectors to flow less, then yes it will lean out in whatever manner you program it to.
I'm saying the design of the pistons and valves won't like the lean burn, unless it was designed like that.
If you're saying any modern EFI engine can just run lean as hell like a VX or HX or insight motor, then every manufacturer would have done so from 1992-2000 to get way better mileage at cruise.....but they didn't.
I thought I read that the VX will go to 20:1-25:1 AFR. This is a lot more than the 15:1 you were talking about.