Quote:
Originally Posted by thambu19
Going DI it allows companies to run lean mixture in the first few (1-5) cranking cycles to avoid pre-ignition during cranking. This fuel control is not possible with PFI during cranking.
In my opinion once engine is up and running PFI is better for mixture preparation but companies have to do tradeoffs all the time and stick with one method and in the case of FA20 it is DI I believe.
Did the car come with PI during first cal release and then later get changed to DI? Or was it always DI during start and idling?
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Interesting. My calibration is A01G. First second of cranking is full PI, then DI gets added, full DI after around 6-8 seconds. Are later calibrations starting up with DI?