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Topics - DougA

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General Discussion / VCM & ethanol
« on: April 22, 2011, 11:20:56 AM »
I have a 2005 Honda Odyssey EX-L with the VCM engine  (variable cyl ) which will shut off 3 of the 6 cyl when crusing  (newer models have 2-3-4 shut off I believe)
I see that the current release of software, there is an update for 'Injector Cutoff detection'  which is good, as this engine will also shut down all injectors when coasting.
Question is, will it also correctly report gas usage while 3 cyl are shut off ?
This is a serious shortcoming in the ScanGuage II, does UltraGuage have the same issue ?

Also, buried way down in the FAQ is a little comment about "The use of ..., or fuel containing ethanol ... will alter the MPG ..."    The spread of ethanol mixed fuel is everywhere I go,  does this mean the UltraGuage isn't very useful for this purpose ?  (Monitoring fuel comsumption)

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