Engine's Knocking....

[EclipseGST]

Originally Posted by niterydr

phantom knock doesn't exist.

So if that is the case... What do you call lifter tick that gets picked up by the knock sensor even though the engine is not knocking?

[desolate]

That would be phantom knock. Technically what causes that noise are from the lifters that is picked up by the knock sensor. I believe what he's trying to say is the knock sensor would not just recieve noise from nothing. Although in my past experience I drove a 92gsx with horrible lifters. At the time I was logging the car and found out that even though the noise from the lifters was loud, I wasn't getting any 'phantom knock'. Strange, but it must be different car to car.

[niterydr]

Originally Posted by EclipseGST

So if that is the case... What do you call lifter tick that gets picked up by the knock sensor even though the engine is not knocking?

I would call that lifter tick, therefore sending a knock signal to the knock sensor. "knock" can never be phantom, the ecu is hearing something. Just dismissing it as 'I know that is lifter tick, or an axle tapping on the block, or etc.." without fixing it, will cause you to melt your shit someday when it actually is knocking and you dismissed it as 'phantom'.
Noise is different, just because it is audible, doesn't mean the knock sensor picks it up, just fyi.