Check Engine Light Code 52 help
#1
Check Engine Light Code 52 help
I'm getting a check engine light for code 52 knock sensor signal. I've replaced both the wiring harness and the sensor itself and the code still persists.
It doesn't turn on right when I start the car, only after a few minutes or sometimes seconds of driving. It then disappears if the car is shut off and reappears in the same manner.
I did these replacements on the knock sensor close to the front of the car on the driver side under the intake manifold. Is this the only/correct knock sensor?
Also, at one point I had the engine out and the block was painted, does the sensor need the ability to use the block as a ground?
Any other tips or insight would be greatly appreciated. Thanks!
It doesn't turn on right when I start the car, only after a few minutes or sometimes seconds of driving. It then disappears if the car is shut off and reappears in the same manner.
I did these replacements on the knock sensor close to the front of the car on the driver side under the intake manifold. Is this the only/correct knock sensor?
Also, at one point I had the engine out and the block was painted, does the sensor need the ability to use the block as a ground?
Any other tips or insight would be greatly appreciated. Thanks!
#2
There is two knock sensors on the 300/400. If you have an EWD it's K1 and K2 on the diagram, and they are both single pin case ground so they need to have a good path to the engine block to work properly. I can provide pictures of the diagram if you need. Best of luck.
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