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View Full Version : Knock Sensors on Indmar 5.7 EFI - causing Reduced Power Mode?


OkanaganX2
05-24-2011, 05:09 PM
In my attempt to ready the boat for water this year, I put the knock sensors back in, but the block threading was quite rusty.

They only went in about halfway down the thread on the sensor. I didn't want to over-torque them and snap one off in the block.

I took the boat out the next day and found it was running in reduced power mode, wont rev over 3000rpm

Will the knock sensors haved caused this running issue?

sand2snow22
05-24-2011, 05:28 PM
Take it to a dealer and have them scan for codes. They will be able to tell you exactly what the problem is. Stop wasting your time guessing what is wrong.