I was getting a knock sensor code on bank 1. I replaced the knock sensor and it went away for a couple of weeks but is back now. The wiring from what I can see looks ok. Anyone have any thoughts on what it could be. The engine is running smooth so not sure what could be causing it. I am running premium fuel. I have not pulled the plugs but they were replaced about 20000 miles ago.
Knock Sensor Code
- Thread starter Climber1
- Start date
You need to actually test the wiring to and from the ecm and knock sensor. You also need to check the ecm to make sure is not corroded, if it is, that needs to be tested as well. The ecm in your D1 likes to collect water. If all that checks out then you've got a mechanical issue somewhere. A vibration from something or and actual combustion problem like timing or over fueling.
From what I’ve read about knock sensors is that the sensors are fragile and the wiring to the sensor is problematic as well. Maybe check the power and ground wire or wires to sensor.
i replaced my knock sensor with a new one, erased the code, and drove. code came back, but i don't know when since it never threw the check engine light.
still have the code but issues driving and get 12 to 12.5 mpg around town with a steel front winch bumper, winch, steel rear bumper, and 32" tires. so, i don't think the knock sensor is affecting fuel mileage.
