Thread: Idle dip
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Old 02-02-2015, 10:30 AM   #21
ztan
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Can anyone with the idle dip problem set all 3 PI/DI ratio tables to have full DI up to 0.3 g/rev load (see figure)? My theory is that it may eliminate DI/PI switchover at low IPW where the port injectors get activated in the non-linear range and send the engine transiently lean - especially if the PI scaling is unbalanced to the lean side.

As per last post, I have had a bit of hesitation at low loads (2000-3500 rpm at part throttle, 0.2-0.3 g/rev load) with bigger injectors and doing this has solved the problem for me.
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