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Sniper efi to control cooling fan

3.7K views 1 reply 2 participants last post by  Michael Everson  
#1 ·
I am trying to have my sniper efi to control the cooling fan. I took the light blue output wire that says it’s for the fan from the sniper and spliced into the green wire on the fan relay. Then I adjusted the setting in the handheld to around 30 degrees for the fan on/off to test. The fan just continues to run. As it would without the sniper. Anyone accomplish this would be so kind to share how they wired it? The RF manual says two different things depending on the pdf and the book. One says cut the blue wire the other says cut the red jumper.
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#2 ·
Is the sniper wire putting out a positive or negative signal? The green wire in the RF harness needs a negative signal. What happens when you unplug the Sniper blue wire? You shouldn't need to cut anything in the RF harness for this to work unless the sniper is putting out a positive signal. where is that light blue wire coming from in your hand?
Mike