I need a bit of advice, I have fitted a muzzys slipon and power commander to my 636 and on the muzzys it came with a 'thing' that goes in where the power valve cables connect to, well to cut a long story short my FI light stays on when this piece should make it go out. Is there a requirement to take it into the shop or not to worry as the powercommander should be taking care of all that.
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