I have I 1994 nissan altima ,I am replacing the knock sensor but the cable only have one connection ?
Should I find another or that's the way it goes?
Luis
[email protected]

ECT Gauge Sending Units also have only one wire going to the connector. So, if I understand what you are saying, everything may be the way it's supposed to be.

Yes, the Knock Sensor (KS) has only one White wire leading to it. The threaded contact is ground(common) to the block or head.