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Discussion Starter · #1 ·
Just bought an 04 f7 efi, was hoping to get a max rpm reading after some test runs, it reads 4620 every time,
so is something wrong with my tach unit or am I missing something??? I make a test run and idle the sled without
turning off the engine and hold in the top button on the speedo and after every run it reads 4620.
 

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That's from the factory. When you see the MAX appear, keep holding the button, and push the other button. It will reset then you can do your run. Every run you do you'll need to reset to see your highest, unless it was higher than the last run.
 
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