left knock sensor but not.
 

I have a error code 28 coming up which means left knock sensor, replaced it and still no good. Is there any other reasons I maybe getting this error?
Tony

Re: left knock sensor but not.
 

The wiring that goes to/from the knock sensor? Check the connections between the ECU and the sensor and then check for continuity if you don't see anything obvious.

Or maybe the replacement knock sensor is also bad (it does happen).