PC III USB EX - The EPA has won
#11
06-17-2007, 12:52 AM
#12
08-17-2007, 03:32 PM
#13
08-18-2007, 09:19 AM
RE: PC III USB EX - The EPA has won
ORIGINAL: jmetro
after changing components, the bike needs to be ridden for 100-150 miles before the ecm really finishes tuning in the lower throttle settings. an 06 dyna or 07 any model, cannot be diagnosed as faulty untill there is that many miles on the bike.
after changing components, the bike needs to be ridden for 100-150 miles before the ecm really finishes tuning in the lower throttle settings. an 06 dyna or 07 any model, cannot be diagnosed as faulty untill there is that many miles on the bike.
Do you know authoritatively just how this is actually handled? Or is this just speculation on your part?
#14
08-18-2007, 09:46 AM
RE: PC III USB EX - The EPA has won
ORIGINAL: dynaglider
What I still want to know is how effective the Harley system is at keeping the air/fuel mix near the 14.7 ideal. I've understood that it only trims fuel, because it is a system dedicated to reducing emmissions and, as a nice side effect, maximizing fuel economy. This says to me that you can be running lean and the EFI with O2 sensors will not be able to add fuel. You will run lean, with all of the problems that can bring.
But I haven't found anyone who can confirm one way or the other. Perhaps the EFI in the 2007 models can add fuel to bring a lean condition back to the ideal. Certainly no one claimed that was true for the 2006 Dynas.
What I still want to know is how effective the Harley system is at keeping the air/fuel mix near the 14.7 ideal. I've understood that it only trims fuel, because it is a system dedicated to reducing emmissions and, as a nice side effect, maximizing fuel economy. This says to me that you can be running lean and the EFI with O2 sensors will not be able to add fuel. You will run lean, with all of the problems that can bring.
But I haven't found anyone who can confirm one way or the other. Perhaps the EFI in the 2007 models can add fuel to bring a lean condition back to the ideal. Certainly no one claimed that was true for the 2006 Dynas.
Which models prior to '07 had one or more O2 sensors? Any that were so equipped must certainly have had the capability to regulate injector duty cycle in either direction as necessary.
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