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who's had an issue with the knock sensor

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Old 06-15-2010, 05:01 PM
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Default who's had an issue with the knock sensor

My car has been running smoothly but recently I feel that it is underpowered and today for some reason the check engine light came on and it came up with the "knock sensor code" from what they told me at the shop. are these related? does it need to be replaced right away?
Old 06-17-2010, 02:52 PM
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My SS had a code one time for knock sensor, I had gotten gas recently prior to that...i went to Sunoco and filled the rest of the tank with 94 Octane and the light went out, I guess i had bad gas from Marathon.
Old 06-17-2010, 03:19 PM
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Yep. I had a knock sensor go on me. And it puts the car in "limp mode"
Old 06-27-2010, 09:10 AM
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whats limp mode?
Old 06-29-2010, 01:56 PM
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I had a knock sensor die a few years ago and had to have it replaced.
Old 08-14-2010, 07:05 AM
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how do i go about changing them out? i can't find any write ups about it
Old 08-14-2010, 09:10 AM
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they are right underneath your intake.. look for an intake swap tutorial for help.
Old 08-14-2010, 09:32 AM
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Originally Posted by mgonde1
whats limp mode?

It's basically your cars way of "protecting" itself. It can even retard your timing a bit. And yes, its right under the intake.
Old 08-14-2010, 06:27 PM
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ok so i replaced my knock sensors and i noticed that a part was snapped off on the back right of it and it was the oil pressure switch, i replaced it but in the well of where the knock sensor is there was a little bit of engine oil. is there a way to fix this? or is this normal?
Old 08-14-2010, 06:36 PM
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what do codes p0507 p0327 mean?
Old 08-14-2010, 06:40 PM
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Originally Posted by mgonde1
what do codes p0507 p0327 mean?
I believe you p0327 is your knock sensor code. p0507 is the idle control system, I think. Maybe a dirty TB?? Someone else may have a better answer for you on this one
Old 08-15-2010, 09:36 AM
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I cleaned off my injectors and everything before putting it back and it's still reading bad knock sensors.......any ideas?
Old 08-15-2010, 11:35 AM
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did you replace the harness? perhaps a bad connector or a pinch in the wires..
Old 08-17-2010, 11:18 AM
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no i didn't where can i get one
Old 08-17-2010, 05:07 PM
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Originally Posted by mgonde1
no i didn't where can i get one
i think it's dealer only
Old 08-17-2010, 05:59 PM
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I got a few codes on my car and a couple of them are "knock sensor circuit malfunction" and the car is running rich...also have some bad o2's..at WOT the car seems to have full power though
Old 10-19-2010, 02:03 PM
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Just went through all of this. One thing that is a must is using AC DELCO SENSORS.




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