nek
10+ Year Contributor
- 832
- 9
- Apr 17, 2009
-
Pittsburgh,
Pennsylvania
My damn car is still throwing this knock sensor circuit code and I cant find any information on the damn thing. Its like no one truly knows how the knock sensor works.
From the information Ive gathered, the knock sensor has 2 wires. One is grounded the other is a signal wire back to pin 78. Easy enough.
Is the ecu supposed to provide the sensor with any voltage?
How much voltage is the sensor supposed to be sending to the ecu with no knock?
How does the ecu know the difference between a knock sensor malfunction and a knock sensor circuit malfunction?
I am getting a circuit malfunction dtc. The ground tests fine and the knock sensor itself is new. I am getting a voltage of 63mv on the signal wire which I think is coming from ecu side of the harness which may be my issue but I cant find any information on the damn specs.
Gimme some help, even if its just a link to a informative website.
From the information Ive gathered, the knock sensor has 2 wires. One is grounded the other is a signal wire back to pin 78. Easy enough.
Is the ecu supposed to provide the sensor with any voltage?
How much voltage is the sensor supposed to be sending to the ecu with no knock?
How does the ecu know the difference between a knock sensor malfunction and a knock sensor circuit malfunction?
I am getting a circuit malfunction dtc. The ground tests fine and the knock sensor itself is new. I am getting a voltage of 63mv on the signal wire which I think is coming from ecu side of the harness which may be my issue but I cant find any information on the damn specs.
Gimme some help, even if its just a link to a informative website.