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Running like crap

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Old Jan 4, 2009 | 06:50 PM
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Medicfrost
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Road Warrior
Joined: May 2008
Posts: 1,649
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From: Celebration, FL
Default Running like crap

My Road King with EFI is running like crap when I reach areas of humidity. She's accelerates rough, and feels lets out frequent hissing sounds from the air intake when I pass lakes. She's been doing it for a couple weeks, but I wasn't able to determine the problem until tonight, when the cold air was nice and dry, but became slightly humid when I passed lakes. I initially tried changing out the engine temp sensor, because she had problems like this last year, and that ended up being the problem, but it made no difference. I have NOT touched the barometric pressure sensor. Any suggestions on what else could cause this problem?
 
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