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Bill, if you don't like the idea of using Mode 6 because
it may cause an adjustment of all bins above staging - here is an alternative
suggestion based on the way I coped with the situation.
As I mentioned my engine would also bog due to leaning
during the staging process - being too lazy to read the manual and spot Mode 6
as a possible solution, I used the "brute force" method. I observed that
when my engine staged my bin pointer would jump from the 30 some region to
around 60. It was immediately after I observed the manifold pointer to
make that jump - that the air/fuel ratio went lean and the engine
bogged.
So from the lean indication I was getting , I presume my
engine was (for whatever reason) not getting adequate fuel in the bins around
60. So I started increasing the MAP values in bins 60-65 higher
(enrichen) in incremental steps. I found that each adjustment richer in
those bins caused the bog to become less severe giving me a comfortable feeling
I was headed in the correct direction. Eventually the bog disappeared and
my bin values above 65 were not affected because I did nothing to change
those.
You might want to try that method - but I would give Mode
6 another try by adjusting below staging and checking results above
staging.
Ed
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