What's this wire go to?

[techtige]

image.jpg

What does this go too? Knock sensor?

[dukesofhazzard]

funny, cause when I picked up my boat, mine was off too, I believe it is the knock sensor as that is where I plugged mine back in, guess they forgot when winterized

[Greeko]

I thought it was a buttplug...

[chpthril]

knock sensor

[BCRider]

Knock sensor is right.

[techtige]

Thanks

[Paxdad]

Probably was left off when boat was winterized as they have to remove the knock sensor to drain the block.