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The adaptation can be learned at any time. It needs to learn RPM range (segment) 1 and load range 2 to have misfire recognition. I am unsure on the 111 motor exactly what you need to do to learn it. On some of the V engines for example you need to select 4th gear and drive it 1 minute at about 45mph, I'd have to try to confirm that, but that's an example of how this stuff gets adapted (learned in). We were told once this segment is learned, that the rest of the rpm/load ranges will be learned in automatically. But I have seen cars where other segments were learned in, but this one wasn't.
The ring gear adaptation can be checked using SDS (to see which segments have been learned). Instructions for achieving adaptation to ensure misfire recognition should all be spelled out on SDS also. I'd also see where the fuel trim is running, should be fairly close to 1.00.
Gilly
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