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Lack of power on under 1700rpm


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My cruiser has lost power on takeoff until it hits about 1700rpm,will barely make it if taking off up a hill.once past this stage it feels perfectly normal but then I noticed once at 100km/he it is sitting around 2700rpm,usually around 2000. I checked fuel filter as I had recently fueled up,checked air filter,cleaned MAF sensor,took intercooler off and checked MAP sensor filter and vac hoses for cracks. Thinking possibly age valve may be stuck open but I'm only a bush mechanic. Not throwing angle codes,I have a scan gauge and nothing there.Taking in for further assessment when I find someone available but just seeing what others have found with similar symptoms. Thanks 

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Just now, Goltzy123 said:

My cruiser has lost power on takeoff until it hits about 1700rpm,will barely make it if taking off up a hill.once past this stage it feels perfectly normal but then I noticed once at 100km/he it is sitting around 2700rpm,usually around 2000. I checked fuel filter as I had recently fueled up,checked air filter,cleaned MAF sensor,took intercooler off and checked MAP sensor filter and vac hoses for cracks. Thinking possibly egr valve may be stuck open but I'm only a bush mechanic. Not throwing angle codes,I have a scan gauge and nothing there.Taking in for further assessment when I find someone available but just seeing what others have found with similar symptoms. Thanks 

 

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