Hey guys,
I’m in the process of swapping QR25 motors right now. I ran into a snag last night when putting the wiring harness onto the new motor; the knock sensor didn’t want to connect. I tried looking up the knock sensor to see if there was some trick to connecting it, or if there were different parts numbers or something I could be missing. I thought I might’ve been going a little crazy since it was way past midnight so I decided to sleep on it. Right before writing this I decided to pull the knock sensors off of both motors and sure as shit they’re two different types.
The Siemens brand sensor (left or top) came from the old motor, and the NGK sensor (right or bottom) came from the new one. I’m going to install the old sensor right after I’m done writing this up.
Is anybody familiar with the different knock sensor types or why they would be different? Maybe this JDM engine came from something other than an Altima or Sentra?
I’m in the process of swapping QR25 motors right now. I ran into a snag last night when putting the wiring harness onto the new motor; the knock sensor didn’t want to connect. I tried looking up the knock sensor to see if there was some trick to connecting it, or if there were different parts numbers or something I could be missing. I thought I might’ve been going a little crazy since it was way past midnight so I decided to sleep on it. Right before writing this I decided to pull the knock sensors off of both motors and sure as shit they’re two different types.
The Siemens brand sensor (left or top) came from the old motor, and the NGK sensor (right or bottom) came from the new one. I’m going to install the old sensor right after I’m done writing this up.
Is anybody familiar with the different knock sensor types or why they would be different? Maybe this JDM engine came from something other than an Altima or Sentra?