POWER COMMANDER EX III USB - HARLEY DAVIDSON - 99-01 EFI...

POWER COMMANDER EX III USB - HARLEY DAVIDSON - 99-01 EFI...
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I installed a powercommander 5 on my 09 fat bob-it ran good for a week and now the bike is hesitating and seems to be misfiring at low r.p.m-plugs appear more black than what seems normal for a bike w/300 miles!

Posted by ericlevesque on Mar 14, 2009

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POWER COMMANDER EX III USB - HARLEY DAVIDSON - 99-01 EFI...

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Sounds like it running fat or too much fuel. power commanders and sreamin eagle tuners should all be installed and tested on the dyno. if it hasnt been... thats your problem your bike has to be adjusted while being measured check power commanders website for local dealers with approved dyno's!
Unplug the power commander first. It could be bad. They occasionally are defective. If it cures up the problem, then contact who you pruchased it from. if it doesn't make sure the mapping is actually for you application. it could be running on the rich side and it's taking a little while to finally load up.

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