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Has anyone deleted their cats? Motorcycle aftermarket companies make a dongle to fool the o2 sensors to prevent codes. Havent had any luck with websearches for something similar. thanks
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I haven't heard of anyone doing that on a Nautique.
Why would you want to?I own and operate Silver Cove Marine, which is an inboard boat restoration, service, and sales facility located in Mooresville, North Carolina. We specializes in Nautiques and Correct Crafts, and also provide general service for Nautiques fifteen years old and older.
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More power. Runs cooler. Wouldnt have to buy new Cats if they were toasted.....
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Always fun to tinker and try things...might be a good strategy if your cats ever went out...But to take out ones that work....meh...Comment
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I assume there is a sensor before and after the cat, is that right.Originally posted by MONTANAJACK View Post
What is the make and model of the engine?
Is the same engine used in automotive application?
The only way to do this is to reprogramming the ecu.
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2017 H5 which is a GM 5.3L but I have no idea how much is modified by PCM from how it would be automotively. I have had several motorcycles where I put the cat delete kit and the company included dongles to replace the pre cat 02 sensors and fooled the ECU which made reprogramming unnecessary. Deleting made a significant performance difference on the bikes and it seems silly to pay $1,000 for new cats if i find out they melted in my trouble shooting the next couple days but maybe nobody is making that kind of kit for inboards.....
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I don't see the point in removing the before cat sensor you make the engine run in open loop and loose performance.Originally posted by MONTANAJACK View Post
Newer engines also use the after cat sensor for engine control and it makes it hard to build a dongle.
Older ecu only used the 2nd sensor to check the cat.
I do some research.
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