Fan relay and sniper install
You need to stop with the colors and talk in relay pin numbers. And you need to make CERTAIN this WORKS before you hook it to the EFI
HERE IS HOW a relay with an internal spike diode works, and how to avoid blowing it up
Even "I" have trouble because the internet is all over the place with published spike / flyback diode orientation/ polarity. You MUST test what you have to be sure it is right
In the diagram I posted--which I believe to be correct.......
The orientation of this diode dictates that + power be applied to pin 86, and ground side (EFI END) MUST BE 85. This connection cases the diode NOT to conduct. IF you were to wire this the other direction, the diode would act as a DIRECT SHORT and draw excessive current, blowing up whatever is weakest---a fuse, the EFI, or the diode itself.
You need to stop with the colors and talk in relay pin numbers. And you need to make CERTAIN this WORKS before you hook it to the EFI
HERE IS HOW a relay with an internal spike diode works, and how to avoid blowing it up
Even "I" have trouble because the internet is all over the place with published spike / flyback diode orientation/ polarity. You MUST test what you have to be sure it is right
In the diagram I posted--which I believe to be correct.......
