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Thanks for the input! I’m trying to figure out how exactly to take this muffle apart. There aren’t really any good YouTube vids out there so trying to read the shop manual. Once I figure that out I’ll give it a good attempt

Appreciate the feedback. I’ll update you after the test this weekend

Someone on facebook mentioned this "I'm wondering if the 4 pinhole injection ports on the exhaust manifold may be blocked which is restricting how much water is making it into the waterbox. The exhaust overheat triggers at 230 degrees so if its only happening at high rpm that lines up with...

Thanks for the reply. If I was to disconnect the jet pump to the exhaust how would I test that exactly ? Keep it on the trailer and just back in the ski so the intake is under water? Also would that not flood my hull? Sorry kind of new to diagnosing something like this

Got a 2012 GTI 155. The check engine light would come on when pinging very high rpm’s in sport mode. If I slow down for about a minute it goes away. Took the code to get read and the guy told me to replace the exhaust temperature sensor. Thats th sensor that sits between the resonator and the...