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  1. K

    Mercury 200 EFI rough idle and small loss of top speed

    I dont have the TPS test harness... Any way to do it the hack way?
  2. K

    Mercury 200 EFI rough idle and small loss of top speed

    Hello, Sorry that my first post here is a question :) I own a 2.5L 200 EFI (1996( since a year and it has run really great. 2 weeks ago it started to idle very rough. Shaking and not willing to keep running at idle in gear. When i give it the smalles amount of throttle, it runs fine and at...
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