M8 ECM flash update
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Seasoned HDF Member
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M8 ECM flash update
M8 (2017 RGU) was in for 1000 mile service. A EMC flash was done.
Before
Calibration 41000481A
After
Calibration 41000481B
note: do not install on air cooled models. Do not install on those that have been raced tuned or have SE performance parts.
It was light snow and 28 degrees on the ride home so I did not try to see if there was any performance differences.
Before
Calibration 41000481A
After
Calibration 41000481B
note: do not install on air cooled models. Do not install on those that have been raced tuned or have SE performance parts.
It was light snow and 28 degrees on the ride home so I did not try to see if there was any performance differences.
Seasoned HDF Member
Joined: Jan 2008
Posts: 13,672
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From: State of Confusion
confused here..you had the HD dealership use a Street Tuner to calibrate your ECM on your water cooled 107, because you have what modifications?
the before calibration references...OEM?
the after (recalibration) references Stage....???? non SE performance parts means ones flagged in the catalog that don't have the Green Light?
I'm just not understand what all this means
the before calibration references...OEM?
the after (recalibration) references Stage....???? non SE performance parts means ones flagged in the catalog that don't have the Green Light?
I'm just not understand what all this means
Road Warrior
Joined: Jul 2015
Posts: 1,512
Likes: 345
From: Ohio
Sometimes Harley will come out with ECM updates - just like any other software. Doesn't necessarily have anything to do with performance enhancements. Usually it's just minor bug fixes. The before and after calibration numbers will sometimes be included on your service invoice if you have any service done by a dealership (and some authorized independents).
Thread Starter
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Seasoned HDF Member
Joined: Feb 2008
Posts: 23,000
Likes: 11,441
confused here..you had the HD dealership use a Street Tuner to calibrate your ECM on your water cooled 107, because you have what modifications?
the before calibration references...OEM?
the after (recalibration) references Stage....???? non SE performance parts means ones flagged in the catalog that don't have the Green Light?
I'm just not understand what all this means
the before calibration references...OEM?
the after (recalibration) references Stage....???? non SE performance parts means ones flagged in the catalog that don't have the Green Light?
I'm just not understand what all this means
This calibration had nothing to do with Mod's. It just noted that if the bike had a race tune or SE parts not to use the update. there may well be a different one for them.
It is not uncommon when new models hit the street for HD to offer minor ECM updates to improve things or solve minor issue that have come up for some riders.
Seasoned HDF Member
Joined: Jan 2008
Posts: 13,672
Likes: 11,460
From: State of Confusion
thanks..never been told before on any of my bikes it had been updated after leaving from service...so guessing my Stg 1 recalibration the other day was current and they would have made other updates if necessary..hope so anyway..I did have them do a DT update to have the passing lamps stay on with the high beams..thanks
Last edited by mjwebb; Nov 19, 2016 at 10:46 PM.
Thread Starter
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Seasoned HDF Member
Joined: Feb 2008
Posts: 23,000
Likes: 11,441
thanks..never been told before on any of my bikes it had been updated after leaving from service...so guessing my Stg 1 recalibration the other day was current and they would have made other updates if necessary..hope so anyway..I did have them do a DT update to have the passing lamps stay on with the high beams..thanks
Seasoned HDF Member
Joined: Jan 2006
Posts: 11,476
Likes: 3,001
From: Charleston, SC
There have been ECM updates (calibrations) in the past. Nearly no one talks about them for whatever reason.
Wonder if this one contains the idle speed adjustment to 950 RPM some have been talking about.
Wonder if this one contains the idle speed adjustment to 950 RPM some have been talking about.
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Seasoned HDF Member
Joined: Jan 2008
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From: State of Confusion
yup, which is why you just have to use discretion when flipping the switch...I had the jumper added to my 2013 with Daymakers...when riding in the desert in pitch black, and up on Orcas Island pitch black with a bazillion deer everywhere...looks like I turned on Stadium lights! they broadcasted way to the sides as well and I really appreciated having them
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Seasoned HDF Member
Joined: Jan 2008
Posts: 13,672
Likes: 11,460
From: State of Confusion
well it's off and on rain today but now too curious so going for a ride to see...didn't noticed the idle but wasn't aware it may have been updated until now