Smoked EFI

[snydesh]

I have 2 2003 Honda Ranchers, one ES and one standard. I wired my fans to a toggle switch so I can keep the motor from getting hot. They have both been wired this way for 2 years. We went on a trip last weekend and after about 30min my wife’s ES quit like she hit the kill switch. She had not been running the fan. I towed it back with mine and on my way back mine did the exact same thing? I had my fan running the whole time but I ran it harder than I ever have in the past. Both fan fuses were blown. I believe when the sensor told the fan to come on it smoked both EFI modules. I know the modules were smoked because I can smell that painful electrical smell at the plugs. I purchased one for $186!!! And now I am scared to plug it in. I can’t afford to smoke another one. I disconnected the toggle switch and made sure the wires were not touching. Has anyone ever had this happen? Does anyone have a wiring diagram?

Thanks

[snydesh]

Any help would be great.

[saber6]

How did you have them wired in?

[snydesh]

I spliced into the two wires at the fan. I grounded the ground directly to the frame and ran the hot to a toggle switch and from the toggle switch to the battery. I figured I didn't need a fuse because of the fuse for the fan in the fuse pannel.

[saber6]

With the wires disconnected does the fan fuse still blow?

[snydesh]

No it doesn’t blow with the wires disconnected on mine. But it did on my wife’s, but her EFI was visually burnt. It even damaged the connecting plug. They are wired the same.

[jezzicaz789]

Originally Posted by snydesh

I have 2 2003 Honda Ranchers, one ES and one standard. I wired my fans to a toggle switch so I can keep the motor from getting hot. They have both been wired this way for 2 years. We went on a trip last weekend and after about 30min my wife’s ES quit like she hit the kill switch. She had not been running the fan. I towed it back with mine and on my way back mine did the exact same thing? I had my fan running the whole time but I ran it harder than I ever have in the past. Both fan fuses were blown. I believe when the sensor told the fan to come on it smoked both EFI modules. I know the modules were smoked because I can smell that painful electrical smell at the plugs. I purchased one for $186!!! And now I am scared to plug it in. I can’t afford to smoke another one. I disconnected the toggle switch and made sure the wires were not touching. Has anyone ever had this happen? Does anyone have a wiring diagram?

Thanks

Hi guys, Im a newbie. Nice to join this forum.