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Re: Black smoke and loss of boost power in C9

I would swap the boost pressure sensors between the engines.

 

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Black smoke and loss of boost power in C9

I have a game fishing boat with a pair of C9's in it, the starboard motor had an ongoing exhaust leak which has now been fixed. During this time it started to get intermitant loss of boost pressure and in turn revs and power, causing it to create plenty of black smoke. I pulled the aftercleaner off and cleaned it and it temporarly cured the problem, but as it was itermitant it was hard to truly say. But now the problem is constant and it wont rev past 1600 rvs. My question is what would be the next thing you would check ? Is it likly to be the boost pressure sender ?